Perimenopause Explained: Hormones, Supplements, Movement and Wisdom
Updated: Sep 15
Perimenopause can feel like your body has changed the rules without telling you.
Sleep becomes lighter. Anxiety appears out of nowhere. Periods shift. Energy dips. Heat rises in the middle of the night. One month feels normal, the next feels completely unfamiliar.
For many people, the confusing part is that this can begin much earlier than expected. Perimenopause can start as early as the mid-30s, though it often becomes more noticeable in the 40s. It is not a sudden switch. It is a transition, and that transition can last for years.
This guide breaks it down into clear categories: what menopause actually is, what happens to hormones during perimenopause, how hormone therapy works, what supplements may support the body, why movement matters, and the deeper invitation this season can offer.
This article is for general information only and does not replace medical advice. Hormones, supplements and symptoms are personal, so it is best to work with a qualified women’s health doctor, naturopath or other trusted practitioner.
What menopause really is
Menopause is often talked about as a whole life stage, but technically, menopause is one day.
It is the day that marks 12 months since your last menstrual period. Once you have reached that point, you are considered to be in post-menopause.
The years leading up to that day are called perimenopause. This is where many of the symptoms happen, because hormones are changing, rising, falling and becoming less predictable.
A simple way to understand it:
Stage | What it means | What may happen |
Reproductive years | Hormones generally follow a more predictable monthly rhythm | Cycles are usually more consistent, though stress, illness and lifestyle can still affect them |
Perimenopause | The transition into menopause | Progesterone tends to decline first, then estrogen may fluctuate more erratically |
Menopause | The one-day marker | 12 months have passed since the last period |
Post-menopause | The years after menopause | Hormones settle at lower levels, and long-term health support becomes important |
This matters because many people are told, “You are too young for menopause,” when they are actually experiencing perimenopause. Blood tests can be helpful in some cases, but they do not always give the full picture, because hormones can change from day to day and cycle to cycle.
Symptoms, cycle changes, age, health history and life context all matter.
The hormone changes that drive perimenopause
Perimenopause does not look the same for everyone. Some people move through it with mild symptoms. Others feel as if their mood, sleep, body temperature and sense of self have been turned upside down.
A helpful way to understand the transition is in two broad phases.
Phase 1 often begins with progesterone dropping
Progesterone is one of the first hormones to shift in perimenopause.
It is closely linked with ovulation. When ovulation becomes less regular, progesterone can start to decline, even if periods are still coming.
This can begin as early as 35 for some people. It often shows up before obvious cycle changes.
Common signs of lower progesterone may include:
Lighter, broken or less refreshing sleep
Waking around 2 am to 4 am
More anxiety or inner tension
Lower stress tolerance
Premenstrual mood changes
Breast tenderness
Heavier or more difficult periods for some
Lower energy
Feeling less emotionally steady
Progesterone has a calming effect in the brain for many people. When it drops, sleep and mood are often the first places people notice a difference.
This phase can be confusing because estrogen may still be present. A person may still have regular periods, still look “too young” for perimenopause, and still be told everything is normal.
Normal does not always mean easy. Hormonal change can be normal and still deserve support.
Phase 2 often brings erratic estrogen changes
As perimenopause progresses, estrogen can become more unpredictable.
It does not simply decline in a neat line. It can surge, crash, rise again, then dip. This erratic pattern is one reason symptoms can feel so random.
Common signs of fluctuating estrogen may include:
Night sweats
Hot flushes
Shorter, longer or skipped cycles
Heavier or lighter bleeding
New PMS symptoms
Vaginal dryness or irritation
Changes in libido
Brain fog
Headaches or migraines
Joint aches
Mood swings
Feeling wired but tired
A changing menstrual cycle is one of the clearest signs that the body is moving through perimenopause. Periods may come closer together at first, then become less regular over time. Some cycles may be heavy. Others may barely arrive.
If bleeding becomes very heavy, happens after sex, appears after 12 months without a period, or feels unusual for your body, it is worth speaking with a doctor. Not every change should be blamed on perimenopause without checking.
Hormone therapy can be a helpful option
Hormone therapy is one of the most talked about areas of menopause care, and it can also be one of the most misunderstood.
In Australia, many clinicians now use the term menopausal hormone therapy, often shortened to MHT. Some people still call it HRT, which stands for hormone replacement therapy. In everyday conversation, they are often used to describe the same broad category of treatment.
The aim is not to make the body 25 again. The aim is to relieve symptoms and support quality of life when hormone changes are causing distress.
Hormone therapy may be used to help with symptoms such as:
Hot flushes
Night sweats
Sleep disruption
Mood changes linked with hormonal shifts
Vaginal dryness
Pain with sex related to vaginal or vulval tissue changes
Recurrent urinary symptoms in some cases
Bone health risk in suitable candidates
It is not right for everyone. Personal and family history matter, including breast cancer, blood clots, stroke, heart disease, liver disease, unexplained bleeding and other medical factors.
A good hormone therapy conversation should include:
Current symptoms
Menstrual cycle pattern
Medical history
Family history
Breast screening history
Cardiovascular risk factors
Bone health risk
Preferences around tablets, patches, gels or vaginal treatments
Review and follow-up plan
Hormone therapy is not a moral choice. Taking it is not “giving in”. Not taking it is not “doing menopause naturally”. The best option is the one that fits the body, risk profile, values and symptoms of the person in front of the practitioner.
What micronised progesterone is
Micronised progesterone is a form of progesterone that is structurally the same as the progesterone the body makes. The word “micronised” means the particles have been made very small so the body can absorb it more effectively.
It is often prescribed as an oral capsule, though the exact use depends on the person and the prescribing doctor.
For people who still have a uterus, progesterone is usually needed when taking systemic estrogen therapy. This is because oestrogen can thicken the lining of the uterus. Progesterone helps protect the uterine lining.
Micronised progesterone may be used in perimenopause or post-menopause as part of a hormone therapy plan. Some people find it supportive for sleep, especially when taken at night, but responses vary.
It is different from some older synthetic progestins. Progestins are compounds that act on progesterone receptors, but they are not identical to the body’s own progesterone. Both have medical uses. The right choice depends on symptoms, risk factors, tolerance and clinical guidance.
Never start, stop or change prescribed hormone therapy without medical advice.
The difference between BHRT and HRT
The terms BHRT and HRT can be confusing because they are often used in marketing, medical conversations and social media in different ways.
BHRT stands for bioidentical hormone replacement therapy. It usually means hormones that are chemically identical to hormones made by the human body, such as estradiol and progesterone.
HRT, or MHT, refers to hormone therapy more broadly.
The important detail is this: some regulated prescription hormone therapies are already body-identical. For example, prescribed estradiol patches or gels and micronised progesterone may be considered body-identical when used under medical supervision.
The concern often comes with compounded “bioidentical” hormones. These are custom-mixed by compounding pharmacies. In some situations, compounding may have a role, but compounded hormones are not always tested and regulated in the same way as approved medicines. Dosing can also be less predictable.
Term | What it usually means | What to ask |
HRT or MHT | Menopausal hormone therapy, including different forms of estrogen and progesterone-like medicines | Is this approved, regulated and suitable for my health history? |
Body-identical hormones | Hormones with the same structure as those the body makes | Is this a regulated prescription product? |
BHRT | Often used to describe body-identical hormones, sometimes compounded | Is it compounded or approved? How is the dose monitored? |
Compounded hormones | Custom-mixed hormone preparations | Why is this needed instead of an approved option? |
A grounded approach is to ask clear questions, avoid fear-based claims, and choose care that is evidence-informed and personalised (get your personalised plan here).
Supplements that may support the transition
Supplements can be helpful for some people, but please ensure you're not following every trend you hear about on socials. We all respond differently and your unique body needs a unique blend of support. Before adding supplements, especially if taking medication or hormone therapy, check with a qualified practitioner. Some herbs and nutrients can interact with medicines or may not be suitable with certain health conditions.
Vitamin C
Vitamin C is an essential nutrient known for its antioxidant properties, supporting immune function, and aiding in the absorption of iron from plant-based foods. A key study in 2003 suggests Vitamin C may also increase serum progesterone and is shown to support collagen production.
Chaste Tree
Chaste tree, also known as Vitex, is often used to help alleviate symptoms related to menstrual cycles and menopause. It is thought to support hormonal balance and may help with mood swings and breast tenderness.
Estrovera
Estrovera is a supplement derived from a specific type of plant extract that is used to help manage menopausal symptoms, particularly hot flashes. It is believed to work by mimicking estrogen in the body, providing relief for those experiencing hormonal changes.
Magnesium may support sleep and relaxation
Magnesium is involved in muscle function, nervous system regulation and energy production. Some people use magnesium glycinate at night to support sleep and relaxation.
It may be especially useful when stress, muscle tension or restless sleep are part of the picture.
Food sources include:
Pumpkin seeds
Almonds
Cashews
Spinach
Dark chocolate
Legumes
Whole grains
Too much magnesium can upset the gut, and some forms are more likely to cause loose stools.
Omega-3 fats can support heart and brain health
Omega-3 fats are found in oily fish and some plant foods. They are often used to support general heart, brain and inflammatory health.
During perimenopause and post-menopause, paying attention to cardiovascular health becomes more important. Estrogen has effects across blood vessels, cholesterol metabolism and inflammation, so this is a good season to build heart-supportive habits.
Food sources include:
Salmon
Sardines
Trout
Mackerel
Chia seeds
Flaxseeds
Walnuts
Fish oil supplements may not suit everyone, especially those on blood-thinning medication, so check first.
Vitamin D supports bones, muscles and immunity
Vitamin D helps the body absorb calcium and plays a role in muscle and immune function. Low vitamin D is common in many parts of Australia, even in a sunny country, because sun exposure varies with season, skin type, clothing, sunscreen use and time indoors.
Testing can help guide whether supplementation is needed.
Vitamin D matters in this life stage because bone density becomes a bigger focus as estrogen declines.
Calcium matters, but food comes first
Calcium supports bones, muscles and nerve signalling. Many people can meet needs through food, but some may need extra support.
Food sources include:
Yoghurt
Milk
Cheese
Calcium-set tofu
Tinned salmon or sardines with bones
Fortified plant milks
Tahini
Leafy greens
Calcium supplements are not automatically needed for everyone. The right amount depends on diet, bone health, kidney health and medical history.
Protein supports muscle, metabolism and recovery
Muscle mass naturally becomes harder to maintain with age, and perimenopause is a key time to protect it.
Protein supports:
Muscle repair
Blood sugar steadiness
Satiety
Immune function
Bone strength
Recovery after exercise
Good sources include eggs, fish, chicken, beef, lentils, beans, tofu, tempeh, Greek yoghurt and protein powders if needed.
Creatine may help muscle and strength
Creatine is best known for strength training, but it may also support muscle performance and training capacity. Some research suggests it may have benefits for cognition and mood, though this area is still developing.
It can be a practical option for people doing resistance training, particularly when muscle maintenance is a priority.
People with kidney disease or medical concerns should seek advice before using it.
B vitamins can support energy pathways
B vitamins are involved in energy metabolism and nervous system function. Low B12, folate or other nutrients can contribute to fatigue, low mood or brain fog.
That does not mean every tired person needs a B complex. Testing and dietary review can be useful, especially for vegetarians, vegans, people with gut issues, or those on medications that affect absorption.
Phytoestrogens may support some people
Phytoestrogens are plant compounds that can interact weakly with estrogen receptors. They are found in foods such as cruciferous veg, soy, flaxseeds, chickpeas and lentils.
Some people find soy foods helpful for hot flushes, while others notice little change. Whole soy foods such as tofu, tempeh and edamame can also offer protein, fibre and minerals.
Herbs that may help...
Herbs like black cohosh, sage, red clover, ashwagandha and maca are often discussed in relation to menopause symptoms.
Some people find them helpful. Evidence varies, quality varies, and safety matters. For example, some herbs may not be suitable with liver concerns, hormone-sensitive conditions, thyroid medication, sedatives, antidepressants or blood-thinning medication.
Natural does not always mean safe for every body so you need the support of a naturopath to discern the best herbs for you.
Movement is one of the strongest supports
In perimenopause and post-menopause, movement becomes one of the most powerful ways to support long-term health.
Hormonal changes can affect muscle, bones, mood, sleep, insulin sensitivity and cardiovascular risk. Movement helps the body adapt.
A variety of enjoyable movement is key, see the benefits of each type of movement below;
Strength training protects muscle and bone
Strength training is especially important.
As estrogen declines, bone density can become more vulnerable. Muscle mass can also become harder to build and maintain. Resistance training gives bones and muscles a reason to stay strong.
Helpful options include:
Lifting weights
Using resistance bands
Bodyweight exercises
Pilates with resistance
Gym machines
Kettlebell training
Supervised strength programs
The goal is progressive load over time. That means gradually asking the body to do a little more, with good form and enough recovery.
Even two to three sessions a week can be a meaningful starting point for many people.
Weight-bearing movement supports bone density
Weight-bearing exercise means the body works against gravity. This helps stimulate bone.
Examples include:
Walking
Hiking
Dancing
Tennis
Stair climbing
Jogging if suitable
Skipping if pelvic floor and joints tolerate it
Swimming and cycling are excellent for fitness, but they do not load the bones in the same way. A balanced plan may include both.
Cardio supports the heart and mood
Cardiovascular exercise supports the heart, lungs, blood vessels and metabolic health. It can also help mood, stress and sleep.
Brisk walking, cycling, dancing, swimming and interval-style training can all count. The goal is to get a little puffy. Smart watches are a great way to monitor your training zones and stay on track.
Mobility and nervous system care matter too
Perimenopause can bring joint stiffness, muscle tension and a feeling of being less physically resilient.
Mobility work, stretching, yoga, breathwork and gentle movement can help the nervous system shift out of constant alert mode.
These practices may support:
Better body awareness
Reduced tension
Gentler recovery
Improved balance
A calmer stress response
This is not about doing less because the body is weak. It is about listening more closely because the body is changing.
Food foundations make symptoms easier to manage
Supplements can be useful, but food is the base.
Perimenopause is a good time to focus on blood sugar stability, fibre, protein and enough nourishment. Under-eating can worsen stress hormones, sleep, cravings and mood for some people.
Useful food foundations include:
Protein at each meal
Fibre from a variety of vegetables, legumes, fruit and whole grains
Healthy fats from olive oil, avocado, nuts, seeds and oily fish
Calcium-rich foods
Iron-rich foods if periods are heavy
Regular meals if blood sugar dips trigger anxiety or irritability
Less alcohol if it worsens sleep, flushes or mood
Enough water, especially with night sweats
Alcohol deserves special mention. Some people become more sensitive to it in perimenopause. Wine that once felt relaxing may now trigger 3 am waking, anxiety, hot flushes or low mood the next day.
Caffeine sensitivity can also change. If anxiety, breast tenderness or poor sleep are strong symptoms, it may be worth experimenting with timing or amount.
Sleep needs protection in this season
Sleep disruption is one of the most frustrating symptoms of perimenopause. It can come from lower progesterone, night sweats, stress, blood sugar swings, alcohol, anxiety, or a mix of all of them.
Helpful sleep supports include:
Morning sunlight
Regular wake time
Cool bedroom
Breathable bedding
Less alcohol
Avoid caffeine immediately on waking and before bed (the window will vary depending on sensitivity)
Protein-rich dinner
Wind-down routine
Magnesium if suitable
Medical support for night sweats or insomnia when needed
If sleep has become consistently poor, it deserves care. Sleep affects mood, appetite, pain, hormones, immune function and decision-making. It is not a luxury.
Mental health changes are real
Many people experience mood changes during perimenopause. Some describe anxiety for the first time in their life. Others notice rage, low mood, loss of confidence, brain fog or a sense that they cannot cope the way they used to.
This is not a character flaw. Hormones interact with neurotransmitters, sleep, stress sensitivity and nervous system regulation. Life load also matters. Perimenopause often arrives during years of parenting, caring for ageing parents, career pressure, relationship changes or grief.
Support may include:
Therapy or counselling
Hormone therapy if appropriate
Nutrient testing
Nervous system practices
Strength training and walking
Reducing overload where possible
Honest conversations with loved ones
If mood symptoms feel severe, frightening or unsafe, seek urgent support from a health professional or crisis service. Hormonal transitions can be tender, but no one should have to white-knuckle their way through serious distress.
Spiritually speaking, this is a season of wisdom
There is another layer to perimenopause that rarely gets enough space.
Beyond symptoms and blood tests, this season can bring a deep inner shift. The body may begin to reject the pace, roles and expectations that once felt manageable. The old pattern of pushing through may no longer work.
This can feel inconvenient. It can also be wise.
For many, the hormonal shift seems to turn down the volume on people-pleasing. It can make it harder to ignore exhaustion, resentment or misalignment. It can bring a stronger need for quiet, truth, boundaries and meaning.
Spiritually speaking, perimenopause can be seen as a movement into a season of wisdom and support. A time to stop always doing. A time to listen. A time to ask what is actually life-giving now.
This does not mean withdrawing from life. It means relating to life differently.
Questions that may become important include:
Where am I over-giving?
What am I no longer available for?
What kind of support do I need?
What have I outgrown?
What does my body keep trying to tell me?
What would slowing down make possible?
Who am I when I am not performing or pleasing?
The invitation is not to fight the body at every turn. It is to learn its language.
Hot flushes, fatigue, anxiety and cycle changes deserve practical support. They are not just spiritual messages. At the same time, the deeper pull towards rest and truth can be honoured.
Two things can be true at once: symptoms may need treatment, and the season may carry wisdom.
Try not to fight every change
It is natural to want life to go back to how it was. Familiar energy. Familiar cycles. Familiar moods. Familiar capacity.
Some support can help restore sleep, mood and comfort. That matters. Yet part of this transition may also be about accepting that the next season is not meant to be a copy of the last one.
The body may ask for:
More rest
More protein
More strength
More honesty
More boundaries
More sunlight
More spaciousness
More softness
More medical support
More time alone
More connection with people who feel safe
Going slower does not mean giving up. It can mean moving with more respect for the body’s signals.
This is a season to nurture yourself in practical ways. Book the appointment. Ask for the blood tests. Lift the weights. Eat enough. Take the nap. Say no sooner. Let yourself be supported.
A simple way to begin
If perimenopause feels overwhelming, start with a few grounded steps.
Track your cycle and symptoms for two to three months. Include sleep, mood, bleeding, hot flushes, night sweats, alcohol, stress and exercise. Patterns often become clearer when they are written down.
Book an appointment and we can work out your hormonal stage with the help of bloodwork, your medical and family history and current symptoms.
Build a movement rhythm. Prioritise strength training, walking and mobility. Start small if energy is low.
Review food and alcohol. Add protein and fibre before cutting everything out. Notice what helps sleep and what disrupts it.
Explore hormone therapy if symptoms are affecting quality of life. Ask about regulated options, micronised progesterone, estradiol, vaginal estrogen if relevant, and your personal risk factors.
Try not to take every supplement you hear about without professional personal guidance. They become expensive urine if taken unnecessarily and its important to get good quality products that are what your body needs and do not conflict with any medications or other supplements.
Create more support. This may mean emotional support, practical help at home, clinical care, spiritual practice, community, or more honest conversations.
Perimenopause is not the beginning of decline. It is a transition that asks for attention.
With the right information and support, this season can become less frightening and more meaningful. The body is changing, yes. It may also be guiding you towards a wiser rhythm, one with more care, more truth and more room to be fully yourself.
Big love x
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