Does exercise help hot flashes? What the evidence really says

Hot flashes and night sweats are the symptoms most people associate with menopause. If you've been told that exercise will fix them, and it hasn't, you're not doing anything wrong. The evidence on this question is genuinely mixed, and you deserve a straight answer. Here's what the research shows, why you might still feel better for moving, and how to make exercise more comfortable when your internal thermostat has its own plans.

Can exercise reduce hot flashes?

A Cochrane review pooled randomized trials comparing exercise with no active treatment. It found no evidence of a difference in how often or how intensely hot flashes and night sweats occurred, and rated the evidence as low quality.^[1] The authors concluded there wasn't enough evidence to show whether exercise is an effective treatment.

The largest single trial, MsFLASH, randomized sedentary women with frequent hot flashes to 12 weeks of supervised aerobic exercise three times a week, or to their usual activity. Hot flashes became less frequent in both groups, by a similar amount, so exercise made no measurable difference.^[2]

In its 2023 review of non-hormone options, The North American Menopause Society, now The Menopause Society, placed exercise among the approaches not recommended for hot flashes, because the evidence is limited or inconsistent.^[4]

Why do some women feel better once they start exercising?

In a small trial, 21 women with hot flashes did either 16 weeks of supervised exercise training or no training. The exercise group improved their fitness and reported fewer hot flashes than the control group.^[3] Their bodies also started sweating and increasing skin blood flow at slightly lower core temperatures, which suggests better heat control.^[3]

That's a promising mechanism, but one small trial doesn't outweigh larger studies that found no effect. It may be that only some women, or only training that clearly improves fitness, see a benefit. Researchers don't know yet.

What the larger MsFLASH trial did find was small improvements in insomnia symptoms, sleep quality and depressive symptoms in the exercise group, although these weren't statistically significant after adjusting for multiple comparisons.^[2] So if you feel calmer and sleep a little better with regular movement, that's consistent with the research, even if the flashes themselves carry on.

How can you stay comfortable exercising with hot flashes?

The Menopause Society notes that cooling techniques and avoiding triggers haven't been shown to reduce hot flashes as a treatment.^[4] Comfort is a different goal, and these simple adjustments help many people keep moving with less fuss.

Water-based exercise is worth a mention. Swimming and aqua classes keep you cool while you move, and they're gentle on joints too.

Does slow breathing help during a hot flash?

In the trial, women learned paced breathing and were asked to use it at the start of each hot flash. Despite practising correctly and daily, most didn't see their symptoms halve, and there were no significant differences from the comparison groups.^[5] The Menopause Society doesn't recommend paced breathing for hot flashes.^[4]

That doesn't make breathing practice useless. It just means it's a calming tool, not a treatment. A few slow breaths at the end of a workout, or before sleep, can be a pleasant way to settle. The box breathing timer guides you through a short session.

When is the best time to exercise if you get hot flashes?

Many people with hot flashes prefer mornings, when the air is cooler and the day hasn't built up heat. Others prefer evenings. Both are fine.

If you exercise in the evening, a review of 23 studies found that evening exercise generally doesn't harm sleep. The exception was vigorous exercise ending an hour or less before bedtime, which might make it harder to fall asleep and stay asleep.^[6] A warmer body at bedtime was also linked to less efficient sleep in that review, so allow time to cool down.^[6]

For more on this, read exercise for better sleep in menopause.

What does help hot flashes, if not exercise?

The Menopause Society's 2023 statement recommends cognitive behavioural therapy and clinical hypnosis as non-drug options with good evidence, alongside several prescription treatments.^[4] UK guidance suggests considering menopause-specific CBT for hot flashes, either alongside hormone therapy or for people who can't or prefer not to take it.^[7]

Eggsports doesn't give advice on hormone therapy or medicines. What we can say is that you don't have to simply put up with symptoms that disrupt your sleep, work or relationships. To make the appointment easier, the perimenopause symptom snapshot creates a printable summary of what you've been noticing.

Why keep exercising if it doesn't fix hot flashes?

The WHO lists lower cardiovascular mortality, reduced symptoms of anxiety and depression, better cognitive health and better sleep among the benefits of regular physical activity for adults.^[8] It also recommends muscle-strengthening activity on two or more days a week.^[8]

In menopause, those benefits line up with what matters most: strength training for bone density, heart health after menopause and balance and fall prevention.

When should you talk to a doctor?

You don't need to wait until symptoms feel severe. A short appointment can rule out other causes and open up options you may not have known about.

Hot flashes can feel like your body is out of your hands. Moving anyway, in a way that's comfortable, is a quiet act of trust in a body that's still strong and still yours. For the bigger picture, return to the perimenopause and menopause guide.