Hot Flashes or "vasomotor symptoms" are the most commonly reported menopausal symptoms. These symptoms are characterized by a sudden increase of blood flow, often to the face, neck, and chest, that causes the sensation of extreme heat and profuse sweating. When symptoms occur at night they are called “night sweats” and can cause significant sleep disturbances. Episodes of vasomotor symptoms can last 1 to 5 minutes and can be associated with perspiration, flushing, chills, anxiety, and even heart palpitations. For more information on Hot Flashes and other menopausal symptoms, click here.