Hormonal health
8 ways to improve mental health access across your menstrual cycle
Have you noticed how some weeks you feel clear-headed and energetic, while others leave you foggy, anxious, or tearful? There’s a reason for that.
Your mental health during PMS and across your entire menstrual cycle isn’t random. It’s deeply connected to how your brain responds to shifting hormone levels.
Estrogen and progesterone don’t just affect your reproductive system; they also influence neurotransmitter activity, brain connectivity, and even the volume of certain brain regions linked to memory, mood, and emotional regulation.
Research shows that grey matter volume in areas controlling emotion changes measurably across the menstrual cycle in relation to hormone fluctuations.
This isn’t about being hormonal. It’s about understanding that your brain operates differently at different times of the month, and that knowledge gives you power.
The menstrual cycle experience is ultimately brain-based. The brain is the control centre for how your body reacts to hormonal changes.
When you understand what’s happening in your brain during each phase, you can work with your cycle. That’s where real cycle mood regulation begins.
Why Your Mental Health Shifts Across Your Cycle
Your menstrual cycle follows a predictable hormonal pattern, and these hormones act as chemical messengers that profoundly affect brain function.
Estrogen rises during the follicular phase and tends to boost serotonin and dopamine, neurotransmitters that support mood stability and motivation.
After ovulation, progesterone takes centre stage during the luteal phase.
As both estrogen and progesterone drop sharply before menstruation, some women experience significant mood dips, brain fog, or emotional sensitivity.
These shifts cause noticeable mental health issues during PMS.
The key takeaway? Hormonal mood swings aren’t a character flaw. They’re neurological responses to predictable biochemical changes, and that means they can be managed with the right brain-first strategies.
8 Ways to Support Mental Health Across Your Menstrual Cycle
1. Track Your Patterns to Predict Your Needs
Understanding your unique cycle mood regulation patterns is the foundation of effective self-care. When you track symptoms across multiple cycles, patterns emerge that help you anticipate challenging phases and plan accordingly.
Record daily mood ratings, energy levels, anxiety or irritability, brain fog, and physical symptoms. After 2-3 cycles, you’ll likely spot trends. Maybe your anxiety peaks 5 days before your period, or brain fog hits mid-luteal phase.
The Samphire app acts as an active diary for your cycle, helping you spot when symptoms are likely, plan for focus days and rest days, and build habits around your natural rhythms.
2. Adjust Your Exercise Routine to Match Your Energy
Movement is one of the most powerful tools for mental health during PMS and beyond, but the type and intensity should shift with your cycle phases.
Follicular Phase (Days 1-14): As estrogen rises, try high-intensity interval training, strength training with heavier weights, or running.
Luteal Phase (Days 15-28): As progesterone dominates and energy dips, consider moderate cardio like walking or swimming, yoga, or lighter strength training.
Menstrual Phase (Days 1-5): Gentle movement like restorative yoga or walking can ease cramps and support mood without depleting energy.
Exercise stimulates endorphins and brain-derived neurotrophic factor (BDNF), both of which support neuroplasticity, or he brain’s ability to adapt. Research consistently shows that regular physical activity reduces symptoms of anxiety and depression.
3. Eat to Nourish Your Brain Chemistry
Your brain needs specific nutrients to manufacture neurotransmitters and regulate mood effectively. Hormonal mood swings can be amplified by nutritional deficiencies or blood sugar instability.
Nutrient | Brain Benefit | Food Sources |
Omega-3 fatty acids | Reduces inflammation; supports serotonin | Salmon, walnuts, flaxseeds |
Magnesium | Calms the nervous system; reduces PMS | Dark leafy greens, pumpkin seeds, dark chocolate |
B vitamins (B6) | Essential for neurotransmitter production | Eggs, legumes, bananas |
Complex carbs | Stabilises blood sugar; supports serotonin | Oats, quinoa, sweet potatoes |
During the luteal phase, when serotonin naturally dips, eating complex carbohydrates can help maintain levels and reduce irritability. Avoid excessive caffeine and refined sugar, which can worsen anxiety and create energy crashes.
4. Prioritise Sleep Hygiene Throughout Your Cycle
Sleep disturbances are common across the menstrual cycle, particularly during the luteal phase. Poor sleep directly impacts mood regulation, making existing hormonal mood swings worse.
Sleep strategies for better cycle mood regulation:
- Maintain consistent sleep and wake times
- Cool your bedroom to 65-68°F, especially during the luteal phase
- Limit screens 1-2 hours before bed
- Create a wind-down routine with gentle stretching or meditation
- Avoid caffeine after 2 PM
Research shows that sleep deprivation reduces activity in the prefrontal cortex while increasing amygdala reactivity, making you more emotionally reactive. Quality sleep gives your brain the resources it needs for effective cycle mental health care.
5. Practice Mindfulness and Stress Reduction Techniques
Chronic stress exacerbates mental health during PMS by dysregulating the hypothalamic-pituitary-adrenal axis, the same system that controls your menstrual cycle.
Mindfulness meditation increases grey matter in brain regions involved in emotional regulation. Just 10-20 minutes daily can reduce anxiety and improve your capacity to manage hormonal mood swings.
Evidence-based techniques to try:
- Breath work: Box breathing (inhale for 4, hold for 4, exhale for 4, hold for 4) activates the parasympathetic nervous system
- Body scan meditation: Systematically relaxing each part of your body reduces physical tension
- Journaling: Writing about emotions helps process them and identify patterns
- Progressive muscle relaxation: Tensing and releasing muscle groups calms the nervous system
6. Build Strong Social Connections
Social support isn’t just emotionally comforting. It’s neurologically protective. Strong relationships activate brain regions involved in reward processing and stress regulation, helping safeguard mental health during PMS.
During phases when you feel more withdrawn, maintain connection in manageable ways: texting a friend, attending a yoga class, or scheduling video calls during high-energy weeks.
Let trusted friends or partners know that your mood and social energy fluctuate with your cycle. Simply having someone understand why you need more space in certain weeks reduces guilt and anxiety.
7. Consider Cognitive Behavioural Strategies
Cognitive Behavioural Therapy (CBT) techniques are particularly effective for cycle mental health care because they help you identify and challenge thought patterns that worsen mood symptoms.
Simple CBT strategies for cycle mood regulation:
- Identify the thought: When you notice mood shifting, pause and ask, “What am I thinking right now?”
- Challenge the thought: Is there evidence for this thought? Am I jumping to conclusions?
- Replace with a balanced thought: “I feel irritable right now, and that’s normal for this phase of my cycle. This feeling will pass.”
This practice builds the prefrontal cortex’s capacity to regulate emotional responses, essentially training your brain for better emotional control.
8. Try Brain-Based Neuromodulation
Traditional approaches to cycle mood regulation typically focus on hormonal interventions or lifestyle changes alone. Samphire takes a different approach: targeting the brain directly using gentle neurostimulation.
Nettle™ uses transcranial direct current stimulation (tDCS), a non-invasive technology that delivers gentle electrical currents to specific brain regions involved in mood regulation and pain processing.
How brain-based solutions support mental health during PMS:
- Hormone-free and drug-free: Nettle™ provides relief without altering your natural cycle
- Clinically validated: Studies show that tDCS can reduce symptoms of anxiety, depression, and pain
- Convenient: Just 20 minutes a day, 5 days per cycle, from home
- Works with neuroplasticity: Repeated use helps retrain neural pathways for lasting improvements
When to Seek Professional Support
While these strategies can significantly improve mental health during PMS for many women, some symptoms warrant professional evaluation. Seek help if you experience severe mood symptoms interfering with daily life, thoughts of self-harm, or symptoms that don’t improve after 3 months.
Your Brain, Your Cycle, Your Control
Hormonal mood swings and mental health during PMS challenges aren’t weaknesses. They’re neurological responses to predictable biochemical changes.
When you understand what’s happening in your brain at each phase, you gain the power to support yourself effectively.
At Samphire, the focus is on the neuroscience of women’s health, because to truly understand and improve hormonal wellbeing, you need to start where hormones start: in the brain.
Samphire combines cutting-edge science with time-tested practices to deliver relief for women throughout the cycle.
Ready to experience brain-first cycle mood regulation?
Try Samphire Neuro Nettle™ risk-free with their 90-day trial and support your brain across every phase.
After more than a decade of campaigning, doctors around the world have agreed to rename polycystic ovary syndrome (PCOS).
It is hoped the new name, polyendocrine metabolic ovarian syndrome, or PMOS, will help end the misconception that the condition is all about cysts, which campaigners say has contributed to missed diagnoses and inadequate treatment.
The condition affects one in eight women, or 3.1m women and girls in the UK, and is linked to hormone fluctuations that can affect weight, mental health, skin and the reproductive system.
The renaming was spearheaded by UK patient charity Verity alongside Professor Helena Teede, director of Melbourne’s Monash Centre for Health Research and Implementation.
It followed 14 years of consultation with clinicians and patients around the world.
The new name was published in a consensus statement on May 12 and announced at the European Congress of Endocrinology in Prague.
The paper states that PCOS should now be referred to as PMOS.
“This is a landmark moment that will lead to desperately-needed worldwide advancements in clinical practice and research,” said Professor Teede.
“It was heart-breaking to see the delayed diagnosis, limited awareness and inadequate care afforded those affected by this neglected condition.”
When doctors first named PCOS in 1935, they thought it was mainly caused by physical changes to the ovaries.
Decades of research have since changed that understanding, with clinicians now agreeing the condition is far more complex.
“What we now know is that there is actually no increase in abnormal cysts on the ovary and the diverse features of the condition were often unappreciated,” Professor Teede added.
“A name change was the next critical step towards recognition and improvement in the long term impacts of this condition.”
The exact cause of the condition is still unknown, though it is thought to be linked to abnormal hormone levels and is associated with insulin resistance and raised levels of testosterone and luteinising hormone.
Insulin resistance means the body does not respond properly to insulin, the hormone that helps control blood sugar. Luteinising hormone helps regulate ovulation.
Common symptoms listed by the NHS include irregular periods or no periods at all, difficulty getting pregnant, excessive hair growth, weight gain, thinning hair, oily skin and acne.
Campaigners have acknowledged that the name change could cause temporary confusion.
“Despite decades of tireless advocacy to improve awareness, we recognised that the risk of change would be worth the reward,” said Rachel Morman, chairwoman of Verity.
“This shift will reframe the conversation and demand that it is taken as seriously as the long-term, complex health condition it is.”
It is also unclear if, or when, the NHS will change the language it uses.
An NHS England spokesperson said: “We routinely review and update content on the NHS website to ensure it reflects the latest clinical advice and will carefully consider these recommendations.
“The NHS will also continue our work to improve women’s healthcare, including for this important group, which involves giving women more choice over their care, bringing down waiting times, and delivering more care in communities.”
Menstrual fluid collected from tampons could one day provide a simple, non-invasive way to measure a biomarker of nerve damage and potentially track disease activity in neurological conditions such as multiple sclerosis (MS), new research suggests.
Because neurofilament light chain, or NfL, has emerged as a promising biomarker of MS, detecting it in menstrual fluid raises the possibility of monitoring disease activity through the natural monthly cycle of menstruation.
Researchers at Nextgen Jane, in collaboration with Siemens Healthineers, found that NfL, a protein released when nerve cells are damaged, can be reliably detected in tampon-collected menstrual samples.
“Finding that NfL tracks with estrogen levels in menstrual fluid, independent of how much blood is in the sample, tells us there is real biology here, not just contamination,” said Ridhi Tariyal, chief executive and co-founder of Nextgen Jane.
“That changes what this specimen means for neurology.”
In MS, the immune system mistakenly attacks healthy parts of the brain and spinal cord, causing inflammation and damage that can lead to symptoms such as fatigue, numbness, muscle weakness, and problems with balance or vision.
Confirming a diagnosis of MS usually requires a combination of physical and neurological examinations, MRI scans to check for brain and spinal cord damage, and lab tests.
These can include detecting certain proteins in cerebrospinal fluid, the fluid that surrounds the brain and spinal cord, which may indicate inflammation in the brain or spinal cord.
After diagnosis, patients are usually monitored through clinical assessments and routine MRI scans, which help doctors detect changes in disease activity and determine whether treatments are working.
However, MRI assessments can be costly and are usually done once or twice a year, which can prevent doctors from spotting early changes and making timely treatment adjustments.
Because of these challenges, researchers have long sought cost-effective, more accessible biomarkers that could help detect MS earlier, monitor disease activity over time, and evaluate treatment response.
One of the most promising candidates is NfL, a protein found in nerve cell fibres that is released into the bloodstream and cerebrospinal fluid when nerve cells are injured.
To explore whether menstrual fluid could serve as a source for detecting this biomarker and, more broadly, as a non-invasive specimen for monitoring neurological, hormonal and inflammatory signals, researchers analysed 99 tampon-collected menstrual fluid samples from 91 participants.
They used Siemens Healthineers’ highly sensitive NfL assay on its automated testing platform. The team also measured hormonal and inflammatory molecules.
NfL was detected in 98 of the 99 menstrual fluid samples analysed, suggesting the biomarker can be reliably measured in tampon-collected samples.
The researchers also found that NfL levels were associated with estradiol levels, a form of the hormone oestrogen, and that this relationship remained significant even after adjusting for differences in blood content between samples.
By comparison, levels of inflammatory markers were more strongly linked to blood content itself.
According to the researchers, this suggests NfL detection was not merely the result of blood contamination, but may reflect biologically meaningful changes that could potentially be tracked over time through routine menstrual sampling.
Building on these findings, Nextgen Jane is now planning prospective studies to investigate whether menstrual NfL and other neurological proteins can be used to track disease activity over time in conditions such as MS.
“The menstrual cycle provides a built-in longitudinal framework: the same individual, the same biological process, month after month,” said Stephen Gire, chief scientific officer at Nextgen Jane.
“Coupling the NextGen Jane platform with Siemens Healthineers’ highly sensitive NfL assay gives us a path to study neurological biomarker trajectories in a way that has not been possibe before.”
Simultaneous exposure to toxic chemicals and climate-related heat may be worsening fertility harms across humans and wildlife, research suggests.
The review of scientific literature looks at how endocrine-disrupting chemicals, often found in plastic, together with climate-related effects such as heat stress, are each linked to lower fertility and fecundity, meaning the ability to reproduce, across species including humans, wildlife and invertebrates.
Though the reproductive harms of each issue in isolation are well studied, there is little research on what happens when living organisms are exposed to both.
“Together, the two issues are likely to pose a greater threat to fertility, and the additive effect is “alarming”, said Susanne Brander, a study lead author and courtesy faculty at Oregon State University.
“You’re not just getting exposed to one, but two, stressors at the same time that both may affect your fertility, and in turn the overall impact is going to be a bit worse,” Brander said.
The paper looked at 177 studies.
Shanna Swan, a co-author on the new paper, co-produced a 2017 study that found sperm levels among men in western countries had fallen by more than 50 per cent over four decades. Other research has suggested human fertility has been declining at a similar rate.
The University of Washington’s Institute for Health Metrics and Evaluation has previously said the world was approaching a “low-fertility future”, with more than three quarters of countries below replacement rate by 2050.
The new paper’s authors focused on the effects of endocrine-disrupting chemicals and substances, including microplastics, bisphenol, phthalates and PFAS.
These are thought to cause a range of serious reproductive problems, disrupt hormones and be a potential driver of falling fertility.
Brander said the harms linked to these chemicals are often similar across organisms, from invertebrates to humans.
Phthalates, for example, have been linked to altered sperm shape in invertebrates, spermatogenesis in rodents, meaning sperm production, and reduced sperm counts in humans.
PFAS are also thought to affect sperm quality, and both have been linked to hormone disruption.
The chemicals are widespread in consumer goods, so people are often regularly exposed.
Meanwhile, previous research has shown how rising temperatures, lower oxygen levels and heat stress, among other effects linked to climate change, may also worsen infertility.
Heat stress has been found to affect human hormones, and is linked to spermatogenesis in rodents and bulls.
Research shows temperature also plays a role in sex determination in fish, reptiles and amphibians.
The species has evolved to choose which sex it produces in part based on temperature, and the heating planet can “push it too far in one direction or the other, which overrides that evolutionary benefit”, Brander said.
Similarly, many endocrine disruptors may alter environmental sex determination.
The study set out some of the overlapping effects of chemical exposure and climate change across taxonomic groups, from invertebrates to humans.
In birds, for example, exposure to increased temperature, PFAS, organochlorines and pyrethroids may each individually cause abnormal sperm, increased fledgling mortality, abnormal testes and population decline.
“What happens if they’re exposed to more than one of those stressors at the same time? There has been little exploration of that question.
“Even if there have not been a lot of studies looking at these simultaneously, if you have two different factors that both cause the same adverse effect, then there’s a likelihood that they are going to be additive,” Brander said.
Katie Pelch, a senior scientist with the Natural Resources Defense Council nonprofit, who was not part of the study, said the authors had reviewed high-quality science.
She said she wanted to see more examples of the overlap in impacts, but agreed with the overall premise.
“It is likely [multiple stressors] would have an additive effect, at very least, even if they have different mechanisms of harm,” Pelch added.
The solution to the systemic problems would involve tackling climate change and reducing the use of toxic chemicals.
The study cites the global reduction in the use of DDT and PCBs achieved under the Stockholm Convention as an example of an effective measure, but Brander said much more is needed.
“There is enough evidence in both areas to act to reduce our impact on the planet,” she said.
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