They are mostly caused by the hormonal changes during menopause, mainly the diminished levels of estrogen, writes DR BRIGID MONDA
For women who have had hot flashes, there is no mistaking it — a feeling of heat in the face, neck and chest followed by a bout of sweating, weakness and a feeling of suffocation. The sweating may be merely a moist upper lip or you are soaked in sweat and then a chill follows.