Menopause occurs in most women at about the age of 52. Men don't experience menopause. What is menopause and why doe sit occur? Why don't men experience an equivalent event?

Menopause is the permanent cessation of menses (periods). At menopause, a woman's ovaries have run out of primary oocytes.  A woman does not produce oocytes after birth. The oocytes will develop into a variant follicles which will ultimately produce eggs. Only some of the oocytes that form in the embryo will survive to birth, and they will exist in the ovary as primary follicles. Only small percentage of the primary follicles will ever develop into secondary follicles that will ultimately produce an egg. Once the primary follicles are depleted no more secondary follicle formation can occur. This affects the balance of hormones in the body and ultimately leads to the cessation of menstruation. It also leads to a number of other very unpleasant symptoms such as hot flushes. Decreased oestrogen production also increases bone reabsorption by osteoclasts potentially leading to the development of postmenopausal osteoporosis. Men do not experience menopause because they can continue to produce sperm throughout their lives.