Healthywomen iconHealthywomenSep 3, 2026 ~1 min source read

What Happens in the Body During a Hot Flash

+ Infographic text About 3 out of 4 women deal with hot flashes related to menopause. As your ovaries produce less estrogen, cells in your hypothalamus, the part of your brain that controls temperature, are thrown off balance.

What Happens in the Body During a Hot Flash

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+ Infographic text About 3 out of 4 women deal with hot flashes related to menopause.

As your ovaries produce less estrogen, cells in your hypothalamus, the part of your brain that controls temperature, are thrown off balance.

When your body tries to lower your temperature, blood vessels near your skin widen in an attempt to cool you down.

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The useful part

+ Infographic text About 3 out of 4 women deal with hot flashes related to menopause. As your ovaries produce less estrogen, cells in your hypothalamus, the part of your brain that controls temperature, are thrown off balance. When your body tries to lower your temperature, blood vessels near your skin widen in an attempt to cool you down.

How it works

  • These cells send a false signal that your body is too warm.
  • During a hot flash Skin may turn red, flushed and blotchy Your face, neck and chest may feel hot and sweaty Your heart may race or flutter You may feel anxious You may get the chills or shiver.

Details worth keeping

This causes flushing and sweating, also known as a hot flash. When hot flashes happen when you sleep, they are called night sweats.

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