Women's Health Week: Coping With Hot Flashes During the Menopausal Transition

National Women’s Health Week runs May 12 to 18 with the goal of empowering women to make their health a priority. This is a story in a series this week focusing on women’s health issues from the teenage years through menopause.

By Rachel Hess, M.D., M.S., associate professor of Medicine, Division of General Internal Medicine, Section of Women’s Health

Hot flashes – that sudden feeling of intense heat followed by a chill – are the classic symptoms of menopause. One year after a woman has her last period, she is considered in menopause. Yet menopause-associated symptoms, like hot flashes, can begin much earlier. For some women, they can start up to 10 years before menopause and can continue a decade after. Others have them for fewer years, and many fortunate ones don’t have them at all.

Why do these erratic temperature changes occur and what can women do to better cope with them?

During the menopausal transition, a woman’s thermoregulatory zone becomes narrowed. Think of the thermoregulatory zone as the body’s thermostat. In your house if you set your thermostat to 72, the air conditioning may shut off at 70 and then come back on when the house is at 74. This temperature setting is generally comfortable and keeps the on-off cycles to a minimum. But sometimes, the thermostat only wants to be at 72, so if the house is below 72 it shuts the air conditioning off. If it is slightly above that set temperature, the air conditioning comes on in rapid cycle. That’s like what is happening during hot flashes: the body gets a little warmer, which used to be fine, but now turns on the “air conditioning” and starts to sweat. That makes the temperature drop and, since the range is narrow, the body is now cold. This cooling period then restarts the heating cycle all over again.

Understanding this narrowing can be helpful for women to learn how to better cope with these temperature fluctuations. Here are some useful methods to consider:
Specialists in women’s health in UPMC’s Division of General Internal Medicine are available to discuss options to treat hot flashes and other menopausal symptoms.