A hot flash is a sudden onset of intense warmth in your neck, face, or chest, and is often accompanied by sweating and anxiety. Hot flashes are more common in women during menopause. Menopause (life changes when menstruation stops) Most start 1 to 2 years before menopause and stop after 2 years, but some women have it. Hot flashes for more than 15 years affecting women 75% after menopause
