It’s all in your brain

Articles by Samphire’s research team, community experts and leading collaborators.

EndoCyclic Therapeutics announces FDA IND for ENDO-205, the first non-hormonal peptide targeting the root cause of endometriosis.

Endometriosis · Latest Research · Pain and Cramps

ENDO-205: the first non-hormonal endometriosis treatment enters clinical trials

The FDA cleared the first non-hormonal drug candidate for endometriosis to enter clinical trials. We explain what ENDO-205 is, why non-hormonal options matter, and what else is in the pipeline for people who can't or won't take hormonal treatments.

Gold ribbon illustration representing suicide awareness and prevention.

Latest Research · PMDD · Mental Health13 May

PMDD and suicidality: finally the evidence for what millions know to be a lived experience

A major systematic review covering more than 2.6 million people confirms that suicidal thoughts, planning, and attempts are significantly more common in people with PMDD, and that no treatments have yet been studied to address this risk.

Research · Mental Health · Neuroscience29 Apr

Could at-home brain stimulation reduce SSRI reliance?

A new 2026 New York Times feature follows Flow's FDA approval to ask whether at-home brain stimulation could give psychiatry an alternative to SSRIs...here's what it tells us.

Woman at home using a small wireless TENS device on her lower abdomen.

Research · Endometriosis · Pain and Cramps21 Apr

New 2026 research on TENS for endometriosis: what the study shows - and doesn't

New 2026 research from Penn State tested at-home TENS - the mechanism behind devices like Livia, Ovira, and Myoovi for endometriosis pain. Quality of life improved and ibuprofen use dropped, but the primary pain outcome didn't move. Here's what that means for people with endometriosis, period cramps, and chronic pelvic pain.

Woman at home in contemplative repose wearing a minimalist consumer EEG headband, representing brain-sensing technology for the menstrual cycle.

Research · Menstrual Cycle · Neuroscience21 Apr

Your brain changes with your cycle: what a 2026 EEG review found

A new 2026 systematic review pulled together 23 resting-state EEG studies across the menstrual cycle. Alpha and theta brain activity shift reliably with hormones - likely reflecting real changes in attention, emotional well-being, and how the brain processes the self. Here's what the evidence actually shows, and what it still can't tell us.

Close-up illustration of neurons and synaptic connections in the brain, showing the neural pathways involved in GABA signaling and mood regulation.

PMDD20 Apr

Why your brain reacts differently to progesterone: the ALLO theory of PMDD

After ovulation, your body converts progesterone into a neurosteroid called allopregnanolone (ALLO). For most people, ALLO boosts GABA, the brain's calming signal, and that's that. But researchers at Umeå University in Sweden have found that some women's brains respond to ALLO in the opposite direction, with anxiety and low mood instead of calm.

Menopause · Perimenopause16 Apr

Difference Between Perimenopause, Menopause, and Postmenopause

Perimenopause, menopause, and postmenopause are related but distinct stages of the hormonal transition. Perimenopause is the years leading up to menopause, marked by fluctuating estrogen and progesterone, irregular periods, and symptoms like hot flashes, mood swings, sleep disruption, and brain fog. Menopause is a single point in time, confirmed after 12 consecutive months without a period. Postmenopause begins after that and continues for the rest of life, when hormone levels remain low and long-term health concerns like bone loss, heart health, and vaginal changes become more important. Understanding each stage helps women recognise symptoms and seek the right support.

Ovulation · Periods15 Apr

Ovulation Bleeding vs Implantation Bleeding: What Are the Differences?

Ovulation bleeding and implantation bleeding can look similar, but they differ mainly in timing, color, and meaning. Ovulation bleeding happens around the middle of the cycle when an egg is released, while implantation bleeding occurs 6 to 12 days after ovulation if a fertilized egg attaches to the uterine lining. Ovulation spotting is usually light pink or red and may come with one-sided cramps and egg white cervical mucus. Implantation spotting is often pinkish brown, lighter, and may be followed by early pregnancy signs. Tracking cycle timing, discharge, and symptoms helps distinguish between them and reduces anxiety around mid-cycle spotting.

Hormonal Health13 Apr

What Are the Symptoms of Low DHEA-S in Women? Key Signs to Know

Low DHEA-S in women can contribute to persistent fatigue, low mood, reduced libido, brain fog, dry skin, thinning hair, weaker immunity, and gradual loss of muscle or bone strength. Because DHEA-S helps the body produce estrogen and testosterone, low levels can affect energy, sexual health, cognition, and overall resilience. Symptoms often overlap with stress, aging, and menopause, which makes them easy to miss. Causes include natural age-related decline, chronic stress, adrenal problems, certain medications, and poor nutrition. Diagnosis usually involves a blood test, and support may include better sleep, stress management, exercise, nutrient-dense eating, and medical guidance on treatment options.

Menopause10 Apr

Menopause and Immune System Health: Symptoms and Causes

Menopause and perimenopause can weaken immune resilience by changing how estrogen supports immune cells and inflammation control. As hormone levels fall, the body may become more prone to low-grade inflammation, slower recovery, more frequent infections, and flare-ups of autoimmune symptoms. Sleep disruption, chronic stress, and gut changes can make these effects worse. The article explains that immune changes are part of the broader hormonal transition, not a separate issue. Helpful strategies include improving sleep, eating an anti-inflammatory diet, exercising moderately, managing stress, and staying current on vaccinations. Medical advice is important when symptoms become persistent or disruptive.

Menopause · Hormonal Health9 Apr

How to care for your skin during menopause

Menopause changes the skin because falling estrogen reduces collagen, moisture, elasticity, and repair capacity. As a result, skin often becomes drier, thinner, more sensitive, and more prone to fine lines, pigmentation, and sometimes acne. The most effective care focuses on gentle cleansing, richer moisturisers with hydrating ingredients, gradual retinol use, and daily sunscreen to protect against further collagen loss. Nutrition also matters, especially omega-3s, vitamins C and E, protein, and phytoestrogen-rich foods. Stress management and good sleep support skin repair by lowering cortisol. Small, targeted routine changes can help menopausal skin feel stronger, calmer, healthier, and more resilient over time.

Perimenopause · Menopause9 Apr

Natural Remedies for Perimenopause and Menopause

Perimenopause and menopause can often be managed with natural, evidence-backed strategies that support the body and brain. Helpful approaches include eating anti-inflammatory foods, adding phytoestrogen-rich options like soy and flaxseed, and getting enough calcium and vitamin D for bone health. Regular movement, especially strength training, cardio, and yoga, can improve mood, sleep, and overall resilience. Stress reduction through meditation, breathwork, and better sleep habits may ease symptoms such as hot flashes, fatigue, and brain fog. Some women also benefit from supplements like magnesium or black cohosh, especially when used thoughtfully alongside consistent daily lifestyle changes.

Perimenopause · Emotional Health · Mental Health8 Apr

Can Perimenopause Cause Anxiety? Explained

Perimenopause can cause anxiety because changing estrogen and progesterone levels disrupt brain chemicals that regulate calm, mood, and stress response. Many women experience sudden panic, racing thoughts, nighttime worry, and a sense of not feeling like themselves, even without a prior history of anxiety. Sleep problems, stress, caffeine, alcohol, and blood sugar swings can make symptoms worse. Helpful strategies include breathwork, meditation, exercise, better sleep habits, symptom tracking, and professional support when anxiety affects daily life. The article stresses that perimenopausal anxiety is real, biological, and treatable, and that understanding the cause is often the first step toward relief.

Menopause · Mental Health7 Apr

How Does Menopause Affect Your Mental Health

Menopause can significantly affect mental health because changing estrogen and progesterone levels disrupts brain chemicals involved in mood, motivation, focus, and emotional stability. This can lead to depression, anxiety, irritability, mood swings, brain fog, and loss of motivation, even in women with no prior history of mental health concerns. The article explains that these symptoms are biological and treatable, not personal weakness. Helpful strategies include exercise, sleep support, mindfulness, good nutrition, therapy, symptom tracking, and medical care when needed. With the right support, most women can reduce the severity of these changes and feel more emotionally steady through the transition.

Menopause · Hormonal Health7 Apr

Is the Keto Diet Good for Menopausal Women?

The keto diet may help some menopausal women manage weight gain, insulin resistance, inflammation, and possibly brain fog by reducing carbohydrates and shifting the body toward ketone use. However, it also carries risks, including possible effects on bone density, cholesterol, nutrient intake, and long-term sustainability. The article argues that strict keto is not necessary for everyone, and many women may benefit from a more moderate low-carb or Mediterranean-style approach instead. The best dietary plan during menopause is one that is nutrient-dense, sustainable, and paired with exercise, stress management, sleep support, and personalised medical guidance for success.

Menopause6 Apr

The Grandmother Hypothesis: What Menopause Reveals About Human Evolution

The grandmother hypothesis reframes menopause as an evolutionary adaptation rather than a loss. It suggests that women who lived long after fertility ended helped care for grandchildren, improving child survival and allowing daughters to have more children. Research from historical and cross-cultural populations supports the idea that maternal grandmothers increased reproductive success and reduced child mortality. The theory also implies that the human brain evolved for resilience, social engagement, and cognitive function well beyond reproductive years. While not the only explanation for menopause, it offers a view of post-reproductive life as a meaningful, selected phase of human development.

Menopause · Neuroscience6 Apr

Does Menopause Cause Brain Fog?

Menopause brain fog is a common and usually temporary cognitive symptom linked mainly to declining estrogen, which affects memory, attention, and processing speed. Many women notice forgetfulness, trouble concentrating, word-finding problems, and mental fatigue during perimenopause and menopause. Research suggests these changes are real but typically not a sign of dementia. Symptoms often improve over time, especially with better sleep, regular exercise, brain supportive nutrition, stress reduction, and mentally stimulating activities. Tracking patterns can also help identify triggers. The article emphasizes that the brain remains adaptable, and with the right support, cognitive clarity and confidence can improve through and beyond menopause.

Menopause · Neuroscience · Neuroplasticity3 Apr

How Does Menopause and Perimenopause Affect ADHD?

Perimenopause and menopause can intensify ADHD symptoms because falling estrogen disrupts dopamine, serotonin, and other brain systems that support attention, memory, motivation, and emotional regulation. Women may notice worsening inattention, executive dysfunction, fatigue, and mood instability, or receive a first ADHD diagnosis during this stage, as earlier coping strategies stop working. Helpful approaches include reviewing ADHD medication, considering hormone therapy with a clinician, tracking symptoms alongside hormonal changes, exercising regularly, protecting sleep, and using meditation or other brain-supporting practices. Understanding the hormone ADHD connection reduces self-blame and makes it easier to choose targeted, effective support for daily life.

Menopause · Neuroscience3 Apr

Does Menopause Make Autism Worse? Explained

Autistic women approaching midlife often notice that traits they had managed for years suddenly feel harder to handle. Sensory sensitivities, social fatigue, emotional overwhelm, and executive function difficulties can all intensify during perimenopause and menopause. The question is not whether menopause affects autism, but how and what can be done about it.

Ovulation · Pain and Cramps · Periods2 Apr

Mittelschmerz (Ovulation Pain): Treatment and How Long Does It Last?

Mittelschmerz is mid-cycle ovulation pain that usually feels like a sharp twinge or dull ache on one side of the lower abdomen when the ovary releases an egg. It commonly occurs about 14 days before the next period and may be accompanied by light spotting, bloating, or clear stretchy discharge. For most women, the pain lasts from a few minutes to 24 hours, though it can sometimes continue up to 48 hours. Relief often comes from ibuprofen, naproxen, heat, rest, gentle movement, and cycle tracking. Severe, persistent, or unusual pain should be checked by a healthcare provider.

Menopause · Hormonal Health1 Apr

Can DHEA Improve Menopause Symptoms? What to Know

DHEA supplements may help some menopause symptoms, but the evidence is mixed, and the benefits depend on how DHEA is used. The strongest support is for intravaginal DHEA, which can improve vaginal dryness and pain during sex with limited systemic hormone effects. Oral DHEA may raise estrogen and testosterone levels, yet broader improvements in mood, energy, libido, and cognition remain uncertain. Risks include acne, unwanted hair growth, scalp hair thinning, drug interactions, and concerns for women with hormone-sensitive conditions. The article recommends testing levels, starting cautiously, and making decisions with a healthcare provider rather than relying on supplement marketing alone.

Perimenopause · Hormonal Health1 Apr

Does Perimenopause Cause Weight Gain? Causes and Ways to Manage It

Perimenopause can cause weight gain, especially around the abdomen, due to hormonal, metabolic, and lifestyle changes rather than lack of discipline. Falling estrogen shifts fat storage, slows metabolism, increases insulin resistance, disrupts sleep, raises cortisol, and accelerates muscle loss. Effective management focuses on working with these changes through strength training, regular movement, protein-rich meals, Mediterranean-style eating, better sleep, and consistent stress reduction. Even modest weight loss can improve health risks like diabetes and heart disease. The article emphasizes that this transition is common, real, and manageable with small, sustainable habits that support the body’s changing physiology over time.

Menstrual Cycle · Hormonal Health · Sleep9 Mar

How Irregular Sleep Patterns Affect Your Menstrual Cycle

Irregular sleep patterns can disrupt the hormonal signals that regulate the menstrual cycle. Short or inconsistent sleep may elevate cortisol, interfere with ovulation, and lead to delayed or irregular periods. Because sleep and reproductive hormones influence each other, improving sleep consistency can help support more stable cycles, better mood, and fewer premenstrual symptoms over time.

Hormonal Health7 Mar

Can Screen Time Affect Hormonal Balance?

Excessive screen time can influence hormonal balance by disrupting the body’s natural sleep and stress rhythms. Blue light from phones, tablets, and laptops suppresses melatonin and can keep cortisol elevated at night, affecting sleep quality. Over time, poor sleep and increased stress may interfere with the hormonal signals that help regulate the menstrual cycle, mood, and energy levels.

Periods · Hormonal Health5 Mar

Do You Lose Weight on Your Period? What the Science Actually Says

Weight changes during your period are usually not fat loss or gain, but temporary shifts in water retention caused by hormonal changes across the menstrual cycle. Many women feel heavier before and at the start of menstruation, then notice the scale drop as bloating eases. Understanding this can make cycle-related weight fluctuations feel far less confusing.

A minimalist desk scene with an open lined notebook, pen, coffee cup, and a notification overlay that reads “Daily clarity 3 short questions to clear your head.”

Neuroplasticity3 Mar

The Neuroscience of Daily Clarity: A 3-Minute Brain Reset

We built Daily Clarity to give your brain a structured pause. Three simple questions, grounded in neuroscience, designed to reduce overwhelm and build clarity through repetition. It works by lowering cognitive load, strengthening reward circuits, and reinforcing intentionality. Small, daily inputs that reshape how your brain responds to stress over time.

Pain and Cramps2 Mar

Does Magnesium Help Period Cramps? What the Research Shows

Magnesium may help relieve period cramps by relaxing uterine muscles and reducing prostaglandins, the compounds that trigger painful contractions during menstruation. Research suggests supplementation can ease cramp intensity and improve related symptoms like mood changes and headaches. While not an instant remedy, consistent magnesium intake may support better menstrual comfort over several cycles.

Menstrual Cycle23 Feb

Hormonal Headaches: Understanding the Menstrual Cycle Connection

Headaches that arrive around the same point in your menstrual cycle are rarely a coincidence. Shifts in estrogen directly affect how the brain processes pain, making certain phases of the cycle especially vulnerable to migraines and severe headaches. For many women, symptoms appear just before bleeding begins or during the first days of a period, when estrogen levels drop most sharply.

Menstrual Cycle20 Feb

Hormonal Acne: How Your Menstrual Cycle Impacts Your Skin

Hormonal acne that shows up like clockwork before your period is not random bad luck. It is your skin responding to predictable hormonal shifts across the menstrual cycle. Fluctuations in estrogen, progesterone, and androgens directly affect oil production, inflammation, and how pores behave, which explains why breakouts often cluster around the chin and jawline in the days leading up to menstruation.Understanding how each phase of the cycle influences skin helps replace frustration with clarity. When you can anticipate when breakouts are most likely to appear, you can adjust skincare, stress support, and lifestyle habits in ways that actually work with your biology rather than fighting it.

Pain and Cramps19 Feb

7 of the Best Yoga Poses for Menstrual Cramps

Menstrual cramps are incredibly common, yet relief does not always have to start with medication. Gentle, science backed yoga poses can ease period pain by relaxing pelvic muscles, improving circulation, and calming the nervous system. Even a short, beginner friendly practice can reduce cramping intensity and support both physical comfort and emotional ease during your period.

Periods · Sleep18 Feb

7 Best Positions to Sleep While on Your Period

Sleeping during your period can be uncomfortable, but small changes in sleep position can ease cramps and improve rest. Certain positions reduce pressure on the abdomen, relax pelvic muscles, and support better circulation, all of which help calm menstrual pain. Learning which sleep positions work best for your body can make nights during your period noticeably more comfortable and restorative.

Menstrual Cycle17 Feb

How to Track Your Menstrual Cycle: Methods and Tools Explained

Tracking your menstrual cycle builds insight into how your body actually works. From simple paper calendars to apps and wearable technology, each method offers a different way to notice patterns in bleeding, symptoms, mood, and energy. Consistent tracking over a few cycles reveals what is normal for you, supports informed health decisions, and makes conversations with healthcare providers clearer and more productive.

Periods16 Feb

Does Your Uterus Grow During Your Period? The Science Explained

Claims that the uterus dramatically doubles in size during your period sound alarming, yet biology tells a calmer and more interesting story. The uterus does change throughout the menstrual cycle, but its largest growth actually happens around ovulation, not during menstruation. Period-related changes are mostly linked to blood flow, muscle contractions, and mild inflammation rather than true structural enlargement.

Stress14 Feb

Can Stress Cause Spotting? What You Need to Know

Spotting between periods can feel alarming, especially when life feels overwhelming. Ongoing stress can disrupt the brain’s hormonal signaling, leading to unexpected bleeding that shows up as light pink or brown spotting. Understanding how stress affects the brain body connection helps explain why this happens and what actually helps. Learning to recognize stress related spotting, knowing when it is normal, and understanding when to seek medical support can restore a sense of control. With the right awareness and brain based tools, it becomes possible to support hormonal balance and reduce cycle disruptions even during demanding seasons of life.

Periods13 Feb

Can Taking Antibiotics Delay Your Period? Explained

A late period during a round of antibiotics can feel unsettling, especially when your body is already under pressure from illness. Research offers reassuring clarity. Most antibiotics do not delay your period or interfere with the hormones that regulate your menstrual cycle. When timing changes happen, they are almost always linked to the stress of being sick rather than the medication itself.Understanding how illness, stress hormones, and ovulation timing interact helps explain why your cycle might shift temporarily. Knowing what is normal, what is rare, and when to seek support can ease worry and help you feel more confident about your menstrual health while recovering.

12 Feb

How teen hormones affect periods, skin, and mood

Hormonal shifts during the teenage years affect periods, skin, and mood in powerful (but often predictable) ways. By understanding these patterns and tracking changes over time, teens and their caregivers can turn hormonal ups and downs from a source of stress into a tool for greater self-awareness and wellbeing.

Periods11 Feb

Blood Clots During Your Period: What's Normal and When to Worry

Seeing blood clots during your period is common, especially on heavy flow days. Small, occasional clots are usually normal, but large, frequent clots or heavy bleeding can signal hormonal imbalances or underlying conditions. Understanding clot size, timing, and associated symptoms helps you know when reassurance is enough and when medical advice matters.

Periods · Pain and Cramps9 Feb

Cramps But No Period: Causes, When It's Normal, and When to Seek Help

Cramps without a period can happen at many points in the cycle and are often normal. Ovulation, hormonal shifts, early pregnancy, stress, or digestion can all cause period-like pain without bleeding. Understanding timing, symptoms, and warning signs helps you know when reassurance is enough and when medical care is needed.

Periods6 Feb

Pimples and Periods: Understanding Hormonal Acne Throughout Your Cycle

Hormonal shifts across the menstrual cycle strongly influence skin. Rising progesterone and relatively dominant androgens before menstruation increase oil production, clog pores, and trigger deep chin and jawline breakouts. Understanding cycle timing, stress effects, and lifestyle factors helps reduce period acne and manage hormonal pimples with confidence every single month.

Periods4 Feb

Prostaglandins and Period Pain: Understanding Causes and Finding Relief

Period pain often feels overwhelming, and prostaglandins are a major reason why. These hormone-like compounds drive uterine contractions, inflammation, and heightened pain sensitivity. Understanding how prostaglandins work helps explain cramping severity and opens the door to evidence-based relief options, from diet and medication to brain-based pain management.

Periods · Irregular Cycles2 Feb

Is It Normal to Have Your Period Twice a Month? Common Causes Explained

Having two periods in one month can be normal for people with shorter cycles, but it can also reflect stress, hormonal shifts, or medical conditions. Understanding cycle length, bleeding patterns, and accompanying symptoms helps distinguish harmless calendar timing from irregular bleeding that may need medical evaluation.

Mental Health31 Jan

11 Mental Health Exercises to Boost Brain Health and Well-being

Mental health exercises strengthen the brain much like physical exercise strengthens the body. Simple, evidence based practices can improve mood, reduce stress, and build emotional resilience by supporting the brain’s natural ability to adapt. When practiced consistently, these exercises help boost focus, emotional regulation, and overall wellbeing, creating lasting benefits for mental health and daily life.

Depression · Mental Health30 Jan

How Long Does Depression Last? Understanding Duration and Recovery

Depression does not follow a single timeline. Duration depends on factors like severity, support, treatment, and individual biology. Some episodes resolve within months, while others last longer without care. Understanding what influences recovery helps set realistic expectations, reduce fear, and highlight why early support and consistent strategies can shorten episodes and protect long term mental wellbeing.

Research29 Jan

Why We Run Clinical Trials

Why do we keep running clinical trials when our devices are already available? In health tech, launch isn’t the end of the science; it’s often the beginning. This piece, written by our Research and Data Manager, Ieva, explains what clinical trials actually test, why brain-based technologies like tDCS need especially rigorous evidence, and how ongoing research helps us be precise about who our products help, how, and under what conditions. It’s a look behind the scenes at how Samphire builds evidence, so we can make brain-based relief available to even more women.

Stress29 Jan

Top 5 Stress Management Techniques That Actually Work

Stress cannot be eliminated, but it can be managed in ways that genuinely change how the body and brain respond. Science shows that techniques like breathwork, movement, mindfulness, connection, and brain based strategies reduce stress at its source rather than just masking symptoms. Learning what actually works builds resilience, protects health, and makes everyday pressure easier to handle.

Emotional Health28 Jan

The 7 Traits of Emotional Fitness Every Woman Should Know

Emotional fitness shapes how you respond to stress, relationships, and life transitions. These seven traits highlight skills that help women build resilience, regulate emotions, and stay grounded through hormonal shifts and everyday challenges. Understanding and strengthening these traits supports long term wellbeing, emotional balance, and a healthier relationship with yourself and others.

Mental Health · Emotional Health27 Jan

Difference Between Mental and Emotional Health: What You Need to Know

Mental and emotional health are closely connected, yet they shape wellbeing in different ways. Mental health relates to how you think, process information, and perceive the world, while emotional health focuses on how you experience, express, and regulate feelings. Understanding the difference makes it easier to choose support that strengthens both mind and emotions together.

Perimenopause26 Jan

Perimenopause: Understanding Symptoms, Timeline, and Treatment Options

Perimenopause is a natural hormonal transition that can bring unexpected changes to periods, mood, sleep, and cognitive clarity. Fluctuating estrogen and progesterone levels drive symptoms that may feel unpredictable or disruptive. Understanding when perimenopause typically begins, how long it lasts, and which treatment options exist helps normalize the experience. With the right knowledge and support, this stage can be navigated with greater confidence, comfort, and a sense of control.

Mental Health · Depression24 Jan

How to Overcome Depression Without Medication: 7 Proven Methods

Living with depression can feel overwhelming, and medication is not the only option for support. Research shows that movement, therapy, sleep, nutrition, mindfulness, and brain based tools can meaningfully improve mood and emotional resilience. These science backed approaches work with the brain’s natural ability to adapt, offering practical ways to manage symptoms, build emotional fitness, and support mental health without relying solely on medication.

Endometriosis · Mental Health23 Jan

How Endometriosis Affects Mental Health and Mood

Endometriosis affects mental health as much as the body. Chronic pain, inflammation, hormonal shifts, and long diagnostic delays can contribute to anxiety, low mood, and emotional exhaustion. These effects are rooted in how the brain processes pain and stress over time. Understanding the brain-body connection helps validate these experiences and highlights supportive strategies that address mood, resilience, and emotional well-being alongside physical symptom management.

Nettle™ brain stimulation headband used for PMDD symptom support

PMDD · User Stories · Nettle™23 Jan

Stress-Tested by Grief: How this magic headband reduced my PMDD symptoms and saved my 20s

In this deeply personal piece, Nettle™ user Olivia shares what it was like living with severe PMDD and how a brain-led approach helped reduce her symptoms during one of the most stressful periods of her life. From daily symptoms and inability to work, to navigating grief with unexpected stability, Olivia reflects on the moment Nettle™ was truly put to the test. Her story highlights why access to alternatives for PMDD management beyond antidepressants matters.

Endometriosis22 Jan

Understanding Endometriosis: Symptoms, Causes, and Treatment Options

Endometriosis is a chronic condition where tissue similar to the uterine lining grows outside the uterus, often causing pelvic pain, heavy periods, fatigue, and fertility challenges. Symptoms vary widely and diagnosis is frequently delayed. Understanding how endometriosis develops, how pain is processed by the brain, and which treatment options exist empowers women to seek care, manage symptoms, and improve quality of life with informed, whole body support for lasting relief.

Hormonal Health21 Jan

Postpartum Hormonal Changes: Understanding Your Body After Birth

After birth, hormone levels shift faster than at almost any other time in life, shaping mood, energy, sleep, and emotional resilience. Sudden drops in estrogen and progesterone, paired with changes in oxytocin and prolactin, can feel intense and unfamiliar. Understanding what is happening inside your body helps normalize postpartum symptoms, reduce self-blame, and support recovery with patience, care, and realistic expectations during this powerful transition.

Perimenopause20 Jan

Can You Get Pregnant During Perimenopause? Understanding Fertility in Transition

Pregnancy is still possible during perimenopause, even when periods become irregular. Ovulation may happen unpredictably until menopause is confirmed after 12 months without a period. Understanding how fertility changes during this transition helps with informed decisions about contraception, family planning, and health. Knowing the facts reduces confusion, prevents surprises, and supports confidence while navigating hormonal shifts and changing reproductive patterns.

Menopause · Mental Health18 Jan

Menopause and Anxiety: Tips to Ease Stress and Mood Swings

Anxiety during menopause is common and deeply connected to hormonal shifts that affect the brain, sleep, and stress response. Fluctuating estrogen can heighten worry, nervousness, and mood swings, even in women without prior anxiety. Understanding why this happens helps reduce fear and self blame. With practical lifestyle changes, emotional support, and brain based strategies, menopause anxiety can become far more manageable and less overwhelming over time.

Hormonal Health16 Jan

Preparing for IVF: Key Emotional and Hormonal Changes to Expect

Starting IVF brings real physical and emotional changes as hormones temporarily override your natural cycle. Many people notice bloating, fatigue, mood swings, and heightened anxiety during stimulation. Knowing these shifts are common and expected can ease fear and self doubt. With the right preparation, emotional support, and nervous system care, IVF can feel more manageable, helping you stay grounded, informed, and supported throughout each stage of treatment.

Doctor in white overcoat pointing at brain scans

Research14 Jan

Your brain’s insulin sensitivity isn’t constant—it shifts across the menstrual cycle

New research shows that cycle-related shifts in food desire are linked to measurable changes in brain function. The same insulin signal acts on brain networks involved in reward, satiety, and decision-making in opposite ways during the follicular and luteal phases of the menstrual cycle. This helps explain why cravings, particularly for sweet foods, are more pronounced in the luteal phase.

Periods12 Jan

Why Are Some Periods Worse Than Others? What's Actually Going On

Some periods feel manageable, while others bring intense cramps, fatigue, and mood shifts. Changes in hormones, stress levels, sleep, diet, and activity all influence how pain is experienced each month. The nervous system also shapes how strongly cramps are felt. Understanding why symptoms vary helps normalize the experience and highlights practical ways to reduce discomfort, spot patterns, and know when worsening pain may need medical attention.

Periods · Irregular Cycles9 Jan

Why Did Your Period Come Early? Causes and What to Do

An early period can feel confusing, especially when cycles are usually predictable. Stress, hormone shifts, lifestyle changes, and birth control can all affect timing. Most early periods are harmless and temporary. Learning what counts as early, noticing patterns, and supporting the body with stress care, nutrition, and balanced movement helps restore cycle confidence and signals when medical advice may be helpful for long term menstrual health and peace of mind.

Menstruation7 Jan

How Your Menstrual Cycle Affects Your Skin

Hormones influence your skin more than most people realize. Throughout the menstrual cycle, shifts in estrogen and progesterone affect oil production, hydration, sensitivity, and inflammation. These changes explain why skin can glow one week and break out or itch the next. Learning how each cycle phase impacts your skin makes it easier to adjust skincare, prevent flare ups, and respond with care instead of frustration.

Cycle Syncing · Menstrual Cycle5 Jan

The Complete Guide to Cycle Syncing: Nutrition, Workouts, and Lifestyle

Cycle syncing helps align food, movement, and daily habits with the natural hormonal shifts of the menstrual cycle. By supporting each phase differently, many people notice steadier energy, improved mood, and fewer PMS symptoms. Understanding how hormones influence motivation, strength, focus, and rest allows for smarter choices that feel more intuitive. Small, flexible adjustments can make monthly rhythms easier to manage and more supportive of overall wellbeing

Periods · Pain and Cramps2 Jan

Different Types of Period Pain and What Your Body Is Telling You

Period pain comes in many forms, from dull aches to sharp cramps and back pain. Each pattern offers clues about hormonal shifts, prostaglandin levels, stress, and possible underlying conditions. Learning how timing, intensity, and location of pain differ helps you understand what your body is signaling. Recognizing these differences empowers better self care, more targeted relief, and clearer guidance on when medical support may be needed.

PMS19 Dec

What Is PMS? Understanding Symptoms, ADHD Connections, and Managing Relief

PMS affects nearly half of menstruating women and goes far beyond physical symptoms. Hormonal shifts before your period can influence mood, energy, focus, and emotional regulation, with even stronger effects for women with ADHD. Learn what PMS is, why symptoms happen, how ADHD and the menstrual cycle interact through dopamine, and practical, science backed ways to manage relief with more clarity and self compassion.

PMDD17 Dec

How PMDD Affects Your Relationship: What Research Shows and What You Can Do

PMDD can place real strain on even the strongest relationships. Research shows it affects communication, intimacy, and relationship satisfaction during the luteal phase, not because of relationship failure, but because of cyclical brain and mood changes. Learn how PMDD shows up in partnerships, how it affects both partners, and practical, evidence based ways to protect your relationship and navigate symptoms together.

Periods · Menstruation15 Dec

Natural Ways to Stop Period Cramps: A Complete Guide

Period cramps are common, but they are not something you have to simply push through. Research shows that natural approaches like heat, movement, nutrition, stress reduction, and brain based support can meaningfully reduce menstrual pain. Learn why cramps happen, which remedies work fastest, and how to combine evidence backed strategies to ease discomfort and regain control of your cycle.

Periods · Menstruation15 Dec

How Alcohol Really Affects Your Period and Why It Hits Different at Different Times

Alcohol does not hit the same all month long, and your body is not imagining it. Hormonal shifts across your cycle change how your liver, brain, sleep, and inflammation respond to drinking. One glass can feel easy one week and brutal the next. Learn why hangovers worsen before your period and how understanding your cycle helps you drink with intention, not guilt.

Mental Health12 Dec

Brain-Based Therapies for Mental Health: TMS, Neurofeedback, and tDCS

Brain based therapies like TMS, neurofeedback, and tDCS offer different ways to support mental health by working directly with the brain. Each approach uses distinct mechanisms, timelines, and levels of accessibility. Learn how these therapies compare, what conditions they help most, and how to choose the option that fits your needs, lifestyle, and treatment goals.

PMS12 Dec

Can Meditation Help Reduce PMS Symptoms? What Science Shows

Meditation can meaningfully reduce PMS symptoms, and science explains why. Regular practice lowers stress hormones that intensify pain, mood changes, and fatigue during the luteal phase. Research shows meditation improves emotional regulation, decreases physical discomfort, and helps your brain process hormonal shifts more smoothly. Learn how stress, neurobiology, and mindfulness connect, and why consistent meditation supports calmer cycles over time.

Periods10 Dec

Why Tracking Your Symptoms Isn't Enough and What Actually Helps

Period tracking promises clarity, yet data alone rarely brings relief. Logging symptoms can miss stress, brain state, and month to month variation, sometimes even worsening symptoms through overwhelm. Real improvement comes from calming your nervous system, understanding how your brain processes hormonal signals, and using tracking strategically to support interventions. Learn why tracking is not enough, and what actually helps reduce PMS and cycle related symptoms.

Mental Health10 Dec

Brain Stimulation for Mental Health and Wellness: Science-Backed Relief

Brain stimulation is no longer experimental science. Decades of research and recent FDA approvals show that gentle electrical and magnetic stimulation can meaningfully support mental health, pain management, and emotional regulation. Learn how brain stimulation works, which methods are evidence backed, how safe at home devices fit in, and how to choose an option that supports your wellbeing and lifestyle.

Menstruation · Periods8 Dec

How Neurostimulation Devices Work for Menstrual Health

Neurostimulation devices reduce period pain by working with your brain, not just masking symptoms. Mild electrical stimulation helps rebalance pain processing circuits, making cramps feel less intense and easier to manage over time. Backed by neuroscience, these devices support your brain’s natural pain control systems through neuroplasticity. Learn how menstrual neurostimulation works, why timing matters in your cycle, and how it fits alongside other treatments.

Cycle Syncing · Menstruation · Stress8 Dec

The Holiday Hormone Crash: Why December Feels Overwhelming - And What Your Brain Has to Do With It

December has a way of intensifying things - emotionally and physically. As routines shift and stimulation rises, the brain’s natural luteal-phase sensitivity becomes easier to feel, making mood changes and pain flare more noticeable. This piece unpacks the neuroscience behind the “holiday hormone crash” and why understanding it makes the season feel easier.

Ovulation8 Dec

Does Ovulation Make You Emotional? Here's What Science Shows

Ovulation can affect your emotions more than many people expect. Around mid cycle, shifts in estrogen and other hormones influence brain chemicals linked to mood and emotional regulation. About 20 to 30 percent of women notice feeling more sensitive, energized, or emotionally reactive during ovulation. Learn why these changes happen, how your brain responds, and practical ways to support your mood during this phase of your cycle.

Periods5 Dec

What to Do When Nothing Helps Your Period Symptoms Anymore

When period pain medication stops working, it is not a personal failure or your pain getting worse without reason. Often, your nervous system has become hypersensitive, amplifying pain signals beyond what medication can block. This guide explains central sensitization, why painkillers reach their limits, and how brain based, evidence backed approaches can help retrain pain processing and restore quality of life when nothing else seems to help.

Menstruation · Periods5 Dec

The Connection Between ADHD and Your Menstrual Cycle

ADHD symptoms often change across the menstrual cycle, and science confirms why. Fluctuations in estrogen directly affect dopamine, shaping focus, impulse control, and emotional regulation. Many women notice symptoms worsen before their period and improve after it starts. Learn how hormones interact with ADHD, when challenges peak, and practical, evidence based ways to manage cyclical symptom shifts with more clarity and control.

Periods3 Dec

Does Caffeine Help or Worsen Period Cramps? The Research Evidence

Coffee and period cramps have a more complicated relationship than most advice suggests. Large, long term studies show caffeine does not worsen menstrual pain for most people, even at higher intakes. Newer research even suggests coffee may reduce severe cramps in some cases. Learn what the evidence actually says, why results differ between individuals, and how to decide what works best for your body during your cycle.

Luteal · Periods3 Dec

How to Improve Focus and Reduce Brain Fog During Your Cycle

Focus drops before your period for real neurological reasons, not lack of effort. During your luteal phase, hormone shifts reduce dopamine and slow cognitive processing, making concentration and decisions harder. This guide explains what is happening in your brain and shares science backed strategies that actually help, from nutrition and sleep to movement and smarter scheduling, so you can work with your cycle instead of fighting it.

Periods1 Dec

Constipation Before Your Period: Causes and Natural Relief

Constipation before your period is common and driven by hormonal changes, not something you are doing wrong. Rising progesterone slows digestion, leading to bloating and sluggish bowel movements in the luteal phase. Learn why this happens, why diarrhea can follow once your period starts, and which natural, science backed strategies like fiber, hydration, movement, and magnesium can gently restore digestive comfort.

Luteal1 Dec

Brain Fog During Luteal Phase: What's Really Happening in Your Head

Brain fog during the luteal phase is real and rooted in neuroscience, not motivation or willpower. Predictable hormonal shifts change how your brain processes focus, memory, and decision making. Progesterone rises, estrogen drops, and mental clarity can fade until your period arrives. Learn what is happening in your brain, why symptoms vary, and evidence based ways to restore clarity by working with your cycle, not against it.

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Lutea™1 Dec

Save an Average of 30%* With HSA/FSA Dollars

HSA and FSA funds can be applied directly at checkout for both the Samphire Headband (the Lutea™ model in the US) and the Samphire Care membership, making cycle-aware wellbeing more accessible than ever. Whether you’re using the Samphire Headband to bring more calm and stability across the month or Samphire Care for deeper brain–body insight, you can now save an average of 30%* by using pre-tax HSA or FSA dollars at checkout. This guide walks you through how it works, why it matters, and how to start using your HSA/FSA funds on the tools that support your brain throughout your cycle.

PMDD30 Nov

Is PMDD in your genes?

PMDD isn’t caused by a single gene, but genetics can raise your risk by affecting how your brain responds to hormones. Changes in estrogen-related genes and GABAA receptors heighten luteal-phase sensitivity, while environment and epigenetics also play a major role.

Periods28 Nov

How Often Should You Change Your Pad? Period Care Tips

Changing pads every 4–6 hours prevents bacteria, odor, and irritation. Heavy flow may need changes every 2–3 hours; overnight pads last 8–10 hours. Tracking flow and using brain-support tools like Lutea™ helps manage comfort, routine, and overall cycle wellbeing.

PMDD27 Nov

PMDD and eating disorders: The hidden overlap

PMDD can heighten appetite changes, body image distress, and emotional eating, increasing the risk of bulimia and binge eating disorder. Hormonal shifts and serotonin imbalances play a key role, making mood support essential for managing these interconnected symptoms.

PMDD26 Nov

Borderline Personality Disorder and PMDD: What’s the confusion?

PMDD is often mistaken for BPD because both share intense mood swings and irritability, but the key difference is timing. PMDD symptoms appear in the luteal phase and ease with menstruation, while BPD is ongoing. Tracking cycles can help reveal the true cause.

PMDD25 Nov

The PMDD- EDS connection

Women with EDS often experience intensified PMDD symptoms due to overlapping issues like chronic pain, hormonal sensitivity, autonomic dysfunction, and histamine imbalance. Tracking patterns and using supportive tools can help manage both conditions more effectively.

Ovulation24 Nov

Why Does Ovulation Hurt so Bad? Is it Normal?

Sharp mid-cycle pain can be alarming but often reflects normal ovulatory changes that vary greatly between people. Learn the likely causes, straightforward comfort techniques, and which symptoms merit a clinical check, while tracking occurrences with the Samphire app and exploring brain-based approaches such as Nettle™ for added relief.

Periods · Menstruation21 Nov

How to Reduce Period Bloating? Causes & When to be Concerned

Bloating around a period usually comes from hormonal shifts and everyday habits, and it can affect comfort and energy. Learn simple, doable strategies like hydration, gentle movement, and targeted food choices, plus when to seek care, while using the Samphire app and brain-based tools like Nettle™ to spot patterns and reduce flare-ups.

Periods · Menstruation20 Nov

Exercise During Period: Benefits and Things to Avoid

Gentle movement during a period often eases cramps, lifts mood, and boosts energy, helping people maintain everyday life and wellbeing. Learn how honoring the body’s signals, choosing phase-friendly workouts, and tracking patterns with the Samphire app alongside brain-based care like Nettle™ can make exercise more comfortable and effective.

Ovulation19 Nov

Does Ovulation Cause Cramps? Is It Normal?

Cramps during ovulation stem from distinct hormonal shifts and feel different from menstrual cramps for many people. Learn how timing and sensations typically present, gentle ways to manage discomfort, and how combining cycle awareness in the Samphire app with brain-based care like Nettle™ helps people respond confidently.

Periods · Menstruation18 Nov

How to Use a Menstrual Cup? Are They Safe?

Menstrual cups provide a reusable, low-waste option that many find more convenient once they learn the basics of insertion, removal, and cleaning. Learn clear, practical steps for size selection and troubleshooting, and how confidence grows when users pair hands-on guidance with cycle tracking in the Samphire app and brain-based support such as Nettle™.

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PMDD · PME · PMS17 Nov

Why Neurostimulation Works for Mood Symptoms

Neurostimulation like tDCS gently boosts mood-regulating brain activity to ease depression and hormone-related mood symptoms. Samphire’s Nettle™, Lutea™ and app offer drug-free, brain-first support to help manage PMS, PMDD, PME and cycle-linked mood swings more effectively.

Periods · Menstruation14 Nov

Does Traveling Affect Your Period? What Science Says About Jet Lag and Your Cycle

Does traveling affect your period? Science confirms travel disrupts menstrual cycles through multiple mechanisms. Jet lag can delay your period by disrupting circadian rhythms that control hormone release timing. Research shows how long jet lag can delay your period typically ranges from 3-7 days, though some women experience longer delays. When you cross time zones, traveling can delay your period because your hypothalamus interprets light exposure as timing signals for reproductive hormones. Stress, sleep disruption, and changing routines all contribute to why traveling affects periods. Understanding the science behind traveling affects your period patterns helps you prepare, manage symptoms, and maintain cycle wellness wherever you go.

Periods13 Nov

Why Am I So Tired Right Before My Period? Causes & Fixes

Premenstrual fatigue occurs due to hormonal drops, blood-sugar shifts, inflammation, and poor sleep quality. Tracking symptoms, improving nutrition, gentle movement, and using wellness tools like Lutea™ can help manage low energy before your period.

Hormonal Health12 Nov

What Are Hormones? Function & Types

What are hormones and what do they do for women's health? Hormones are chemical messengers controlling everything from energy and mood to reproduction and stress response. Your body produces over 50 different types of hormones, each carrying specific instructions through your bloodstream. Hormones for women like estrogen, progesterone, and testosterone orchestrate your menstrual cycle, but all hormone production starts in your brain. Your hypothalamus and pituitary gland send signals that regulate every endocrine gland in your body. Understanding what are hormones means recognizing that supporting your body's natural regulatory systems through neuroplasticity, light exposure, and stress management creates the foundation for better hormonal health throughout your cycle.

Periods · Luteal11 Nov

Are Cramps a Week Before Your Period Normal?

Premenstrual cramping that starts a week before a period often reflects normal cycle variation but can be influenced by lifestyle and hormonal factors. Learn common causes, easy comfort measures, red flags that need medical attention, and how pattern tracking with the Samphire app plus brain-based support such as Nettle™ can help restore balance.

Menstruation10 Nov

Moon Phases and Menstruation Cycle: Separating Myth from Science

Does the moon affect your menstrual cycle? Science reveals a complex answer. Research shows that moon phases and menstruation were once synchronized, but modern artificial light has disrupted the connection. Studies examining the full moon and menstrual cycle found that women with 29.5-day cycles showed temporary alignment with lunar phases, though effects varied individually. While eastward jet lag and gravitational forces during January can influence moon phase and menstrual cycle patterns, the relationship isn't as strong as folklore suggests.

PMDD10 Nov

How autism intensifies your PMDD

Autistic women often experience intensified PMDD, with heightened irritability, sensory overload, and emotional dysregulation. Hormonal shifts, executive dysfunction, and interoception differences worsen symptoms. Tracking cycles and using tools like Nettle™ can help manage these challenges.

Periods · Luteal7 Nov

How Late Can a Period Be? What's Normal and When to Worry

Periods can be late for many harmless reasons: stress, travel, weight changes, exercise, illness, or hormonal birth control but sometimes signal conditions like PCOS, thyroid problems, or perimenopause. A period is generally considered late when it’s more than a week past your usual cycle; absence for 90+ days needs evaluation. Track cycle length, symptoms, and ovulation to spot patterns. If delays are persistent, very heavy, or accompanied by severe pain, consult a healthcare provider.

PMDD6 Nov

How Childhood Trauma Shapes the PMDD Brain

Early childhood trauma can shape the brain’s stress response, dysregulating the HPA axis and cortisol levels. This heightened sensitivity to hormonal shifts contributes to PMDD symptoms. Tools like Samphire and Nettle™ help track and manage these effects for better cycle control.

Periods · Menstruation5 Nov

Can You Swim With Your Period? Everything You Actually Need to Know

This guide explains how water pressure affects flow, which products work best (tampons, menstrual cups, and period swimwear), and why pads aren’t ideal for swimming. Learn how swimming may relieve cramps and boost mood, when heavy flow or severe pain might make you skip the water, and practical tips for planning, product choice, and post-swim care. Science-backed answers dispel myths and help you enjoy the pool, beach with confidence.

PMDD4 Nov

When ADHD and PMDD collide

ADHD and PMDD often overlap, amplifying symptoms like mood swings, impulsivity, and focus issues, especially before your period. Hormonal drops reduce dopamine, intensifying ADHD challenges. Tracking cycles and tools like Nettle™ can help manage symptoms and improve daily functioning.

Periods · Menstruation3 Nov

Do You Gain Weight On Your Period? What Actually Happens and What Helps

Period-related weight changes are common and usually temporary. Hormonal shifts before and during menstruation (notably progesterone and estrogen) cause water retention, slower digestion, increased appetite, and inflammation often adding 1–5 pounds that resolve within a week. This guide explains why the scale rises, how to distinguish cyclical weight from true gain, and practical steps to feel better: hydration, potassium-rich foods, reduced salt, gentle movement, and tracking. Seek medical advice if weight stays elevated or symptoms persist, don't ignore it.

Neuroplasticity · Neuroscience28 Oct

Neuroplasticity Guide: How Your Brain Adapts and Changes Throughout Life

Your brain is never static; it's constantly rewiring itself in response to what you do, think, and feel. This guide explores real-world neuroplasticity examples, from learning new skills to adapting across the menstrual cycle. Discover how lifestyle habits, mindfulness, and brain-first tools like Nettle™ or Lutea™ help you strengthen your mind’s natural adaptability.

PMDD Symptoms, Causes, and Treatment Options

PMDD27 Oct

What Is PMDD? Understanding Symptoms, Causes, and Evidence-Based Treatment Options

PMDD isn’t just “bad PMS,” it’s a neurological response to normal hormonal changes that triggers severe mood, energy, and focus shifts before your period. Learn how PMDD works, what symptoms to watch for, and explore proven treatments from nutrition and therapy to brain-first, hormone-free solutions like Nettle for lasting relief.

Periods · Menstruation26 Oct

How to Avoid Mood Swings During Period: Diet, Sleep & Lifestyle Hacks

Mood swings before or during your period aren’t “just in your head” they’re your brain reacting to hormonal changes. Learn how to steady your mood through smart nutrition, better sleep, mindful movement, and stress resets. Explore hormone-free options like Nettle™ and Lutea™ to calm your brain’s response and feel balanced all month long.

PMS25 Oct

12 Natural Treatment Options for Premenstrual Syndrome (PMS)

Tired of mood swings, cramps, and fatigue every month? Discover 12 science-backed, natural ways to relieve PMS from magnesium and omega-3s to mindfulness, nutrition, and gentle neurostimulation. Learn how brain-based, hormone-free approaches like Lutea™ help you retrain your body’s response, balance your mood, and feel steady through every phase.

Menstruation24 Oct

Menstrual Cycle Duration: What’s Typical and What’s Not

Curious if your menstrual cycle length is normal? Most cycles last 24–38 days, but your personal rhythm may shift with stress, age, or lifestyle. Learn what’s typical, what changes to watch, and when to seek care. Understanding your unique pattern helps you stay in tune with your health and body.

Cycle Syncing · Cravings23 Oct

Why Do Some Women Crave Chocolate Before Their Period?

That sudden need for chocolate before your period isn’t just a sweet tooth talking, it’s your brain and hormones in conversation. Shifts in estrogen and serotonin, plus dips in magnesium, drive those cravings. Learn why they happen, how to manage them naturally, and how tracking helps you stay in sync with your cycle.

Cravings23 Oct

13 Foods to Eat During Your Period: What To Avoid for Better Relief

Learn which foods to eat and avoid during your period to reduce cramps, bloating, and fatigue. Support hormone balance, mood, and energy naturally with nutrient-rich, anti-inflammatory foods like leafy greens, fish, and sweet potatoes.

PMS · PMDD22 Oct

PMS vs. PMDD: Key Differences You Need to Know

Wondering if your PMS might actually be PMDD? The difference lies in degree, not kind. PMDD causes intense mood swings, depression, or rage that disrupt daily life. Learn how hormones and brain chemistry drive these conditions, what science reveals about PMDD sensitivity, and how brain-first, hormone-free support can help you feel balanced again.

Luteal · Follicular22 Oct

Luteal Vs. Follicular Phase: What's The Difference?

The luteal phase is the second half of the menstrual cycle, beginning after ovulation and ending just before menstruation. During this time, hormone levels, especially progesterone, rise and fall, influencing mood, energy, and physical symptoms. Understanding the luteal phase can help you recognize patterns, support balance, and manage your overall cycle health.

Luteal21 Oct

What to Eat During the Luteal Phase? Food and Diet Tips

During the luteal phase, the two weeks before your period, your metabolism, appetite, and mood all shift. Eating balanced meals with complex carbs, protein, healthy fats, and key nutrients like magnesium, B6, and calcium can help stabilize energy and reduce PMS symptoms. Focus on whole foods, hydration, and steady blood sugar for smoother cycles.

Hormonal Health21 Oct

11 Signs of Hormonal Imbalance in Women: Causes, Tests & Treatment

Hormonal imbalance can show up as irregular periods, fatigue, mood swings, skin changes, or unexplained weight shifts. Learn 11 key signs, common causes like PCOS, thyroid issues, or perimenopause, and how to test and treat them. Understand your body’s signals and explore both medical and brain-first ways to restore balance.

Menstruation21 Oct

4 Phases of the Menstrual Cycle: How to Support Your Body

The menstrual cycle moves through four phases: menstrual, follicular, ovulation, and luteal: each with unique hormonal patterns that affect mood, energy, and focus. Understanding these shifts helps you align nutrition, movement, and rest with your body’s rhythm. Tracking your cycle brings insight, balance, and more effective support for both brain and body.

Close-up of a person’s hand touching grass in sunlight — a calm, grounding visual symbolizing connection between the body and nature, used in Samphire Neuroscience content on menstrual well-being and brain-body balance.

PMDD · PMS · PME20 Oct

The invisible weight of premenstrual disorders

Premenstrual disorders like PMS and PMDD affect millions each month, lowering quality of life across mood, work, and relationships. Learn how understanding your cycle, tracking patterns with the Samphire app, and brain-based care like Nettle™ can help reduce lost days and restore balance.

Periods · Stress20 Oct

How Does Stress Affect Your Period? Key Signs to Notice

Stress disrupts your cycle by altering the brain and hormone connection through the HPA axis and cortisol, causing late or missed periods, heavier bleeding, or spotting. Learn key signs, when to seek help, and simple resets like better sleep, steady meals, boundaries, mindfulness, and brain-first support. Small changes restore balance.

Luteal · Nettle™ · Lutea™19 Oct

What is the Luteal Phase? Duration, Symptoms & Management

The luteal phase is the second half of your menstrual cycle, the stretch between ovulation and your next period. During this time, progesterone rises, influencing mood, energy, and focus. Learn how long the luteal phase lasts, what symptoms to expect, and how brain-based, hormone-free tools like Nettle™ and Lutea™ can help you manage it naturally.

PMS17 Oct

How to Reduce PMS Symptoms: Managing Mood Swings & Fatigue

Reduce PMS mood swings and fatigue with science-backed, brain-first care. Learn how to balance meals, use magnesium and calcium wisely, choose gentle movement, calm stress quickly, and upgrade sleep. Explore hormone-free options and simple tracking to spot patterns, prevent flare-ups, and feel steady through every phase of your cycle.

Periods17 Oct

The 5 Best Period Tracking Apps to Try in 2026

Explore the best period tracking apps of 2026-Samphire, Bearable, Embody, Clue, and Natural Cycles. Compare features for privacy, planning, and brain-first care to find your ideal cycle companion.

Menstruation · Periods16 Oct

How to Get Rid of Period Pain and Cramps Quickly and Effectively

Stop period pain fast with science-backed relief. Learn causes of menstrual cramps, heat and NSAID tips, long-term lifestyle strategies, and brain-based neurotechnology (tDCS) to retrain pain via neuroplasticity.

Ovulation16 Oct

What Is Ovulation? Signs, Symptoms, and the Brain Science Behind Your Fertile Window

Ovulation is more than just the release of an egg; it's a brain-driven event that influences your entire body and mind. This guide explains how the hypothalamus and pituitary gland coordinate hormonal signals that trigger ovulation, when it occurs in your cycle, and the key signs both physical and emotional to watch for. Learn how stress, sleep, and lifestyle affect ovulation, explore science-backed tracking methods, and discover how brain-based tools like Samphire help you understand and support your cycle health.

Neuroscience · Nettle™ · Lutea™13 Oct

The Future of Neurotechnology in Mental Health: What's Coming for Women's Wellness

Neurotechnology is reshaping mental health care, especially for women. This guide explores how non-invasive brain stimulation, wearables like Nettle™ and Lutea™, and personalized neurotech are redefining treatment for anxiety, depression, and PMDD. Learn how brain-first, hormone-free solutions harness neuroplasticity to support calm, focus, and emotional balance safely and effectively.

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Neuroscience · Lutea™ · Nettle™12 Oct

Launching Lutea™ - and how it's different to Nettle™

We’re thrilled to introduce Lutea™ - our newest product, and our first release in the United States. Lutea™ is built on the same scientific foundation as Nettle™, but it represents a new perspective on how we think about women’s brain health, daily wellbeing, and self-care.

PMS12 Oct

Does PMS Get Worse With Age? Causes and What to Expect

Feeling like PMS hits harder with age, especially in your 30s and 40s? You’re not imagining it; the shifting hormones and a more sensitive brain can amplify mood swings, pain, and fog. The good news is that brain-first strategies can help you steady your cycle and feel better without hormones or drugs.

Ovulation7 Oct

How Long Does Ovulation Last? Understanding Your Fertile Window

Ovulation itself lasts just 12–24 hours, but your fertile window extends up to six days thanks to sperm surviving in the body for several days before the egg is released. Our guide explains when ovulation happens, how to identify your most fertile days, and what affects your cycle. Learn to recognize your body’s ovulation signals, understand how brain and hormone interactions shape fertility, and explore tools to track your cycle for conception, contraception, or overall health awareness.

Follicular6 Oct

What Is the Follicular Phase? How Long It Lasts and Why Your Brain Matters

Explore the follicular phase: the cycle’s renewal period from day one of bleeding to ovulation. This concise guide explains how your hypothalamus and pituitary trigger follicle growth, rising estrogen, and cognitive and mood changes. Learn typical timing, symptom patterns (energy shifts, cervical mucus, temperature), how phase length varies between people and across the lifespan, and practical tracking methods like BBT, mucus checks, and LH tests. Discover brain-first strategies and tools to optimize cycle-aware planning, fertility tracking, and overall wellbeing. Effectively.

Neuroscience · Nettle™15 Sept

Closing the Gender Health Gap with Nettle™

Discover how Nettle™ helps close the gender health gap with at-home neurotechnology for menstrual pain and mood relief.

User Stories · Nettle™1 Sept

We asked Nettle™ users about their experience - here’s what they said

Real women, real results. After six months with Nettle™, users reported fewer sick days, less reliance on medication, and reduced GP visits. 80% said they regained nearly a month of life each year, 9 in 10 changed how they use painkillers or hormones, and over half wish GPs offered Nettle™ first. Proof that menstrual health can mean fewer pills, fewer appointments - and more control.

Neuroscience25 Aug

How does female masturbation affect brain health, mood, and pain?

Female masturbation isn’t just pleasure - it’s neuroscience. Discover how solo sex supports brain health, mood, sleep, and pain relief across the cycle.

Pain and Cramps · Nettle™24 Aug

How painkillers work - and why they work differently for menstrual, endometriosis, and widespread pain

Discover how painkillers work for period pain, endometriosis, and fibromyalgia - and why brain-based relief like Nettle™ can make the difference.

Neuroscience23 Aug

What are brain networks and why do they matter for women?

Learn how brain networks like the CEN, SN, and DMN shape women’s focus, mood, and emotional balance - and how they change across life stages.

PMS · Pain and Cramps · Nettle™23 Aug

How do hormones work for pain?

How hormones influence pain - from cramps to chronic conditions - and why brain-based relief like Nettle™ offers a hormone-free option.

Neuroscience22 Aug

Is dopamine really the “happy hormone”?

Discover why dopamine is more than the “happy hormone.” Learn how this powerful neurotransmitter drives motivation, mood, and pain perception - and how hormonal changes across the menstrual cycle shape its role in women’s health.

Neuroscience22 Aug

How does the brain control hormones?

Hormones start in the brain. Learn how the hypothalamus and pituitary control estrogen, progesterone, and other hormones, shaping menstrual cycles, fertility, perimenopause, and menopause - and why supporting brain signaling is key to women’s health.

Neuroscience20 Aug

Do I have enough serotonin?

Discover the real role of serotonin in mood, pain, and your menstrual cycle - plus science-backed ways to support brain health naturally. Serotonin is often called the “happiness chemical,” but that nickname oversimplifies, and misrepresents, its role in the brain. Serotonin is a neurotransmitter: a chemical messenger that helps brain cells communicate. It influences mood, yes, but also sleep, digestion, appetite, memory, learning, and even how we process pain. Think of it as one of the brain’s most important all-purpose molecules, affecting systems and functions across the full body.

Neuroscience20 Aug

Why the prefrontal cortex (frontal lobe) matters

Discover how the prefrontal cortex controls decision-making, focus, and mood - and why hormonal shifts can influence how it works.

Neuroscience18 Aug

Why am I addicted to my phone? Neuroscience explains

Discover how dopamine, brain networks, and attention systems keep you scrolling - and how to break the cycle without relying on willpower.

PMS · PMDD15 Aug

How hormones work for PMDD and PMS

Understand the science behind PMDD and PMS and why your brain’s GABA response to hormones could hold the key to effective treatment.

Pain and Cramps15 Aug

Why do chronic conditions overlap?

Chronic conditions often overlap due to shared biological pathways, nervous system changes, and hormonal sensitivity. Learn why this is common in women’s health and how brain-based approaches like Nettle™ can help.

Neuroscience12 Aug

How to train your brain like a muscle

Discover how to train your brain like a muscle. Learn the science of neuroplasticity, how daily habits and menstrual cycle changes shape your brain, and how tools like Nettle™ and the Samphire app can boost focus, mood, and pain relief.

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Cycle Syncing · PMDD11 Aug

Why PMS gets in the way of your relationship

Learn how PMS can affect your relationships and what to do to help.

Cycle Syncing · Menstruation · Stress6 Aug

Cortisol, stress and the menstrual cycle

Learn how cortisol affects your brain, why stress can become chronic, and how your menstrual cycle may shape stress response.

Neuroscience5 Aug

The gut-brain axis: how your second brain talks to your first

Discover how your gut microbiome communicates with your brain through the gut-brain axis, influencing mood, cravings, stress, and hormonal health.

Pain and Cramps4 Aug

What is pain sensitivity? The science behind your pain threshold

Pain sensitivity isn’t just in your body - it’s in your brain. Discover how your pain threshold works, how menstrual cycles affect it, and ways to change it.

PMDD · Cycle Syncing · Endometriosis4 Aug

Medical misogyny and the rise in self diagnosis

Why more women are turning to self-diagnosing in a world of medical gaslighting.

Neuroscience2 Aug

What are neurotransmitters, and why are they important for women’s health?

Discover how neurotransmitters shape your menstrual cycle, mood, and pain. Learn the two-way relationship between hormones and brain chemistry - and how Nettle™ and Samphire work with your brain to bring relief.

Why period feel different from last month

Cycle Syncing · Menstruation21 Jul

Why does my period feel different from last month?

Have you ever wondered why your period can vary so much? Learn about the science behind it.

Cycle Syncing · PMDD · User Stories5 Jul

Living with PMDD: How Nettle™ changed my life and career

I started using Nettle™ in November 2024 and noticed a shift within the first month of using it. I felt more functional, more emotionally grounded and I wasn’t bed-bound by the weight of my thoughts. I was able to have some normalcy in my life for the first time in a long time.

Menstruation · Neuroscience16 Jun

What your brain is really doing across your cycle

Have you noticed how some weeks you're feeling focused, energetic, and social - while other weeks you feel foggy, tired, and just not yourself? There’s a reason for that, and science finally proves it.

Cycle Syncing · Neuroscience · Pain and Cramps20 Mar

The menstrual pain-brain connection

Pain is not just a symptom. It's a complex experience deeply influenced by biological, psychological, and social factors. Pain is also notoriously difficult to measure

Perimenopause · Menopause · Research10 Feb

The neuroscience of perimenopause

Most women transition through perimenopause without long-term adverse effects; however, a substantial proportion of women emerge from this transition with an increased risk of neurological decline.

neuroimaging revolutionize diagnosis of PMDD

PMDD · Neuroscience · Research15 Nov

Will neuroimaging revolutionize the diagnosis of PMDD?

It takes an average of 20 years for women to be accurately diagnosed with PMDD. This complexity can be attributed to various factors such as

Cycle Syncing · Menstruation24 Oct

All about that time of the month

You know what we’re talking about - the days leading up to your period when you often feel low, irritable, and maybe find yourself arguing with your partner more. But what’s really happening?

PMS · Menstruation · Research8 Oct

The hidden game changer

A growing number of elite athletes have broken their silence about a topic long considered taboo in the world of sport - their menstrual cycles.

Endometriosis · Pain and Cramps10 Apr

The neuroscience of endometriosis

If you’re one of the 1 in 10 women living with endometriosis, you’ll know just how debilitating it can be. The constant, gnawing pain that often makes it hard to get through a day or enjoy the thin...

Cycle Syncing · Neuroscience26 Feb

Neuroplasticity as a tool for optimizing menstrual health

For centuries, the prevailing belief was that the adult brain was immutable to change. Research has shown this is not the case.

Periods · Research30 Oct

Periods, productivity, and the path to progress

In modern workplaces, productivity is often the yardstick by which success is measured. Yet, beneath the layers of spreadsheets, deadlines, and meetings, lies an aspect

Menstruation · Pain and Cramps · Research17 Oct

The problem with painkillers: they weren't made for women

Painkillers weren't made for women and haven't changed for over 4 decades, so why do we still use them for menstrual-related pain?

PMDD · PMS · Cycle Syncing29 Sept

Women with severe PMS and PMDD experience depression-like symptoms every month

An increasing number of clinical studies are examining the brain in relation to the menstrual cycle, with a particular focus on women with severe PMS.