Cortisol and menopause: what stress really does, and the myths to ignore

You've probably seen it on social media. Cortisol, the "stress hormone", gets blamed for belly fat, broken sleep, exhaustion and almost everything else in midlife. Some posts sell home tests. Others sell supplements that promise to "balance" it.

So what is the real link between cortisol and menopause? The honest answer is that it's less dramatic, and less certain, than the internet suggests. Menopause stress is real, and it can make everything feel harder. But you don't need to test or "fix" your cortisol to start feeling better.

This guide explains what cortisol does, what research has actually found, and where the popular myths go wrong.

What is cortisol?

Cortisol is a hormone made by your adrenal glands, two small glands that sit above your kidneys. You can't live without it. It plays a part in inflammation, your immune system, how your body uses energy, and blood pressure (AP report, 2026).

Cortisol isn't a "bad" hormone. It follows a daily rhythm. Levels rise in the morning, helping you get going, and fall at night. They also go up when you're ill or under stress. Doctors in the same report describe it as very sensitive, changing from minute to minute.

That's why the idea of one "cortisol level" that is simply too high or too low is a bit misleading. For most people, it's moving all the time, and that's normal.

What happens to cortisol in menopause?

This is where it's important to be honest: the evidence is limited and mixed. The studies are fairly small and they don't all agree.

Cortisol may rise for some women, late in the change. The Seattle Midlife Women's Health Study tested overnight urine samples from 132 women over many years. It found that cortisol rose in some women during the late stage of the menopause transition, then came back down in early postmenopause (Woods and others, 2009).

It seemed to follow hormones more than stress. In that study, the rise tracked changes in other hormones, including oestrogen. It wasn't linked to how stressed women said they felt, to their sleep problems, or to low mood. The researchers thought it was more about the body's changing hormones than the pressures of daily life.

Results on hot flushes don't agree. The same team's earlier work had linked higher cortisol to worse flushes. This study didn't find that link. The authors pointed out that their single morning urine sample was only a snapshot, and probably couldn't catch the quick ups and downs that come with stress. They also noted that lab studies have shown cortisol rising after a hot flush.

Broken sleep may play a part. In a 2023 study, 22 women who hadn't been through menopause stayed in a sleep lab. For three nights, researchers kept breaking up their sleep, a bit like night sweats do. Afterwards, their cortisol at bedtime was 27% higher, and the usual rise in cortisol after waking was 57% smaller. When 14 of the women had their oestrogen lowered with medicine, bedtime cortisol was actually lower, not higher.

That study was small, and it used medicine to copy menopause rather than looking at natural menopause. But it suggests broken sleep on its own can unsettle the body's stress system.

So what does it all add up to? Cortisol may shift for some women around menopause, probably tied up with changing hormones and poor sleep. But there's no clear evidence that every woman's cortisol is "too high" in menopause, or that lowering it is the answer to her symptoms.

Menopause stress: how it links to sleep, flushes and mood

Even if the cortisol research is unclear, menopause stress is very real. Stress, sleep and symptoms tend to feed each other.

• Sleep. The NHS says sleep problems are common in menopause and can leave you feeling irritable, stressed and anxious. Night sweats can make them worse. And as the 2023 study suggests, broken sleep may affect your stress system in turn.
• Hot flushes. A flush can bring a racing heart and a rush of alarm. Stress can also make flushes more likely. We explain why in why hot flushes are worse at night.
• Mood. The NHS lists mood swings, low mood and anxiety as menopause symptoms. Our guides to menopause anxiety and menopause mood swings go into more detail.
• Your heart. The NHS also lists palpitations, a heartbeat that feels faster or more noticeable. They can be frightening, which adds to the worry. See heart palpitations in perimenopause for when to get them checked.

On top of all this, midlife can bring plenty of other pressures. You're not weak for finding it a lot. It is a lot.

Is "cortisol belly" real?

It's easy to see why the idea caught on. Many women notice their shape changing in midlife, often around the middle, and it can seem to happen almost overnight. The NHS lists weight gain, often around the stomach and upper body, as a common menopause symptom. So you're not imagining it.

But "cortisol belly" is a phrase that spread through wellness influencers online (AP report). It suggests that ordinary stress is pumping out so much cortisol that it's piling fat onto your tummy. That isn't what the research above shows.

Very high cortisol can move fat to the tummy. But that happens in Cushing's syndrome, which the NHS calls a rare condition. The NHS lists other signs that come with it: thin arms and legs, a red, round face, skin that bruises easily, stretch marks and muscle weakness. The most common cause is taking high-dose steroid medicine for a long time. If that sounds like you, see your GP.

For most women, a change in shape at this age has other, more ordinary reasons. Our pages on menopause belly and menopause weight gain explain what's going on and what can genuinely help.

What about "adrenal fatigue"?

"Adrenal fatigue" is the idea that long-term stress wears out your adrenal glands, leaving you tired all the time. It's a kind thought, in a way, because it puts a name to real exhaustion. But it doesn't hold up.

Australia's healthdirect service says adrenal fatigue is not a recognised medical condition, and that many studies have failed to prove it exists. It also says there are no specific tests for it, and that trying to treat it without a proper diagnosis can be risky.

There is a real condition where the adrenal glands don't make enough hormones. It's called Addison's disease (or adrenal insufficiency), and the NHS describes it as rare. Symptoms can include extreme tiredness, darker patches of skin, weight loss, feeling dizzy when you stand up, and craving salty food. Healthdirect notes that it shows up on blood tests, and that these tests are usually normal in people who've been told they have adrenal fatigue.

If you feel exhausted all the time, please don't settle for a label from a website. See your GP. Healthdirect notes that a doctor may suggest blood tests to look for a medical cause. Our page on perimenopause fatigue explains what to ask for.

Should you test your cortisol or take a supplement?

Plainly: no. There's no need to buy an online cortisol test or a "cortisol supplement".

Tests. Endocrinologists (hormone doctors) told the AP that a single cortisol test rarely tells most people anything useful. It can lead to needless worry and more appointments. Hormonal contraception can also make blood results look falsely high. If your GP does think something is wrong, they can arrange the right tests on your blood, pee or spit, and refer you to a specialist if needed.

Supplements. The same doctors said there are no proven over-the-counter products for high or low cortisol. They also warned that what's inside unregulated products isn't always clear. Healthdirect adds that some untested supplements marketed for the adrenal glands may not be safe, and may interfere with your body's ability to make its own hormones. Always check with your GP or pharmacist before taking anything new, especially if you take other medicines.

What can help with menopause stress?

The goal isn't to lower a number on a test. It's to feel more able to cope. For most healthy people, the doctors in the AP report recommended the basics: eating well, getting enough sleep, staying active, and seeing a therapist if you need one. It's not exciting advice, but it's honest.

Some ideas to start with:

• Talk to your GP about your symptoms. If night sweats or flushes are breaking up your sleep, there are treatments to discuss. See menopause without HRT for an overview of the options.
• Look into CBT. It's a short talking therapy that UK menopause guidance now includes. Our guide to CBT for menopause explains how it works and how to get it.
• Protect your sleep where you can. Our guide to menopause insomnia has practical ideas to try tonight.
• Move every day, even a short walk.
• Talk to someone. A friend, your partner, or women going through the same thing.

When to see your GP

Book an appointment if:

• stress, worry or low mood are getting in the way of daily life
• you've had a low mood for more than 2 weeks
• you feel exhausted all the time and rest doesn't help
• you have signs of Cushing's syndrome or Addison's disease, as described above
• you're worried about any symptom and want it checked

If you ever feel you can't keep yourself safe, call 999 or Samaritans on 116 123.

You can use our perimenopause symptoms list to note down what's been happening before your appointment.

Where relaxation fits in

If stress and worry have become a big part of your menopause, it can help to have a calm few minutes that are just for you. Our hypnosis for menopause anxiety, Calm the Anxious Mind, is a recording to help you relax and feel calmer. It includes slow breathing and a simple cue you can practise and use any time. It's a relaxation recording, not a treatment, and it doesn't replace advice from your GP.

Related: menopause anxiety, perimenopause panic attacks and heart palpitations.

This page is general information, not medical advice. If you're worried about any symptom, please talk to your GP or pharmacist.