How do you handle a hot flash in a meeting?

Picture a thermostat in your brain, in the hypothalamus (the area that sets your temperature). As long as your temperature stays inside its comfort zone, you feel nothing. Falling estrogen shrinks that zone ^[1].

So a rise of a few tenths of a degree, invisible to you five years ago, now trips a "too hot" alarm ^[1]. Your body widens the blood vessels and sweats to cool down fast. Hence the wave, the hot neck, the flushed cheeks.

This is purely mechanical. It has nothing to do with your composure or your ability to run the meeting ^[4]. Many women report that these waves weigh on their work, and some even consider scaling back their careers ^[11].

And it isn't a phase of a few months. The median duration of these waves is 7.4 years, and for some it runs past a decade ^[2]. They affect up to 8 in 10 women during the transition ^[9]. So "just toughing it out" is not a workable plan.

Here's the truth that changes everything. When you panic at the thought of the wave showing, your body releases stress hormones. They shrink your thermal comfort zone even further ^[1].

Stress is a common aggravating factor for hot flashes ^[7]. And anticipatory anxiety, "what if it hits right now, in front of everyone," keeps your body on alert and amplifies the distress you feel ^[4]. Just before a wave, in fact, your cardiac vagal control drops, the signature of a stress response ^[6].

The result: hiding feeds the stress, and the stress intensifies the wave. It's a loop, fear of judgment, rising stress, a stronger wave.

That's exactly where your power is. Cognitive behavioural therapy (work on your thoughts and stress) reduces the perceived impact of the waves, even without changing how many you get ^[3]. Letting go of the fight doesn't make you lose control. It hands it back.

When the wave starts, the instinct is to tense up and hold your breath. Do the opposite, quietly, without anyone noticing a thing.

• Breathe from the belly. Inhale through the nose for 4 to 5 seconds, exhale gently for 6 to 7. This slow breathing reactivates your calming nervous system and settles the stress response ^[5].
• Cool a key point. A little cool water on the wrists, a sip of iced water, a neck fan on its low setting, all help your body dip back under the alarm threshold ^[8].
• Drop a layer. A cardigan or blazer you slip off in one move, air that moves, and the wave passes without leaving a visible trace ^[8].

Set the stage with clothing: dress in layers you can build on, and favour breathable natural fabrics, linen or cotton, that let air move instead of pinning sweat to your skin ^[8].

Just before a wave, your calming nervous system eases off ^[6]. Slow exhaling switches it back on. The evidence is modest, but the technique is risk-free, free of charge and invisible ^[5]. Change the inner script too: instead of "please don't let it show," tell yourself "a wave is rising, I breathe, it will pass."

You can also see your high-risk slots coming. Coffee, alcohol, spicy or hot food, spikes of stress: each one raises your temperature or your inner alert level, and can set off a wave ^[7].

These triggers vary from one woman to the next. The only way to learn yours is to track them over time ^[7]. An app that logs your waves, your meals, your stress and your schedule surfaces your patterns and flags your risky slots. You anticipate instead of enduring: a big presentation at 11 a.m.? You shift the coffee and pick a lighter lunch.

If your waves are frequent, intense and weigh on your sleep and your work, proven treatments exist. Menopausal hormone therapy (MHT) is the most effective and cuts waves by about 75% ^[9]. It's a first-line treatment, to discuss with your doctor based on your profile, such as any history of cardiovascular disease or hormone-sensitive cancers ^[9].

If MHT isn't right for you, non-hormonal options exist. Certain antidepressants (such as venlafaxine or paroxetine) reduce waves by 30 to 60% ^[8]. Fezolinetant, a newer medicine, targets the neurons that set your internal thermostat and lowers how often waves occur ^[10]. Cognitive behavioural therapy works on the other side, the stress and the anticipation ^[3]. All of these are prescribed and followed with a doctor. And flag any unusual bleeding, it's worth having checked.