Coronary heart disease (CHD), also known as coronary artery disease is a narrowing of the blood vessels (coronary arteries) that supply oxygen and blood to the heart.
Therefore, the only way to know if you have gone through menopause is if you have not had your period for one year. (And it's not menopause if your periods stop for some other reason, like being sick.) The average age of menopause is 51, but for some women it happens as early as 40 or as late as 55.
Females begin their menstrual cycle during puberty at the onset of menarche, their first menstrual period. Females continue to have many menstrual cycles throughout their lives until menopause occurs between ages 40 to 60. The average menstrual cycle lasts about 28 days, but can last anywhere from 24 to 42 days.