Some like it hot flash.

Hot flashes and night sweats, the polite name is vasomotor symptoms, are among the most common and most disruptive parts of perimenopause. As estrogen falls, the part of your brain that regulates temperature gets oversensitive, so a tiny change reads as a heat emergency. It is not in your head, it is in your hypothalamus. Find your type below.

Meet all the types

How Phaes helps after the quiz

Hot flashes and night sweats are not just uncomfortable, they raise the cost of every workout and quietly steal the sleep you recover on. Phaes does not just track your cycle and symptoms, it reads a short daily check-in, including how hot and how rested you are, and turns it into a running and strength plan that eases when the heat is winning and pushes when you are genuinely ready.

Questions women ask about this

Why do hot flashes get worse when I exercise?

Exercise raises your core temperature, and in perimenopause your temperature control is already oversensitive, so it can tip you into a flash more easily. It does not mean you should stop, exercise has big benefits in midlife, but it helps to train in cooler conditions, hydrate well, and ease intensity on days the heat is intense rather than pushing through it.

Are hot flashes and night sweats a sign of perimenopause?

They are among the most recognizable signs. Both are vasomotor symptoms caused by falling and fluctuating estrogen disrupting how your brain regulates temperature. They often begin before periods become irregular and can continue for years. Persistent or severe symptoms are worth discussing with a clinician, since effective options exist.

Keep going

• Is it perimenopause? Take the symptom check
• How to exercise with hot flashes
• Perimenopause and sleep, explained
• Take another Phaes quiz