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.
The average age for menopause in the United States is approximately 52 years, but the menopause transition can last for a number of years. During the menopause transition, women's ovaries produce less and less of the hormone estrogen, until menses stops completely. The loss of estrogen may cause hot flashes, night sweats, insomnia, headaches, irregular periods, and vaginal dryness.