Hot flashes may occur a few times a day or six or more times an hour.

A flash of light occurs, and Michelangelo comes back.

The F-18 was just lining up to make a cold pass when the flash occurred.

The flash of a lightning strike and resulting thunder occur at roughly the same time.

Hot flashes occur when the blood vessels near the skin's surface dilate to cool.

Hot flashes accompanied with sweating can also occur at night.

Frost's sudden flash of insight and intuitive understanding occurred in 1895, at age 21.

When, a moment later, another flash occurred, the smell increased, and he realized it had something to do with these electrical discharges.

The gases are suppose to collide and a bright flash will occur.

When hot flashes occur at night, they are called "night sweats".