Two-thirds of women who die suddenly had no warning. In 80% of cases, autopsy findings show evidence of heart disease. Premenopausal women are less vulnerable to rhythm disturbances under the protection of estrogen.

Two-thirds of women who die suddenly had no warning. In 80% of cases, autopsy findings show evidence of heart disease. Premenopausal women are less vulnerable to rhythm disturbances under the protection of estrogen.