Male menopause

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  • In most women, the menstrual cycle continues for at least 40 years from puberty. Between the ages of 45 and 55, the levels of hormones change; the menstrual cycle becomes less regular and eventually stops. This stage, called menopause, marks the point at which a female is no longer capable of reproducing. Menopause is a normal occurrence in all women; however, the effects of menopause vary widely from one woman to another. In men, by contrast, sperm production continues throughout life, although the number of healthy sperm likely declines with age....

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  • American men face a staggering array of health concerns. According to the Centers for Disease Control and Prevention, 70 percent of American men are overweight, a key predictor of future health problems. Almost 25 percent smoke, another key risk factor. One in five American men has heart disease, and 29 percent aged twenty and older suffer from hypertension. More than 11 percent of men face a limitation in their usual activities due to chronic health conditions. In addition, the medical concerns men face often differ from those of most concern to women.

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  • Recent reviews have addressed issues of cigarette smoke exposure and various facets of reproduction including delayed time to conception, ovarian effects and premature menopause, implantation failure, fetal growth restriction and growth retardation, placental abnormalities, reduced fecundity, congenital abnormalities, and effects on male reproduction [32-34]. However, most prior reviews have not considered smoke's interaction with the oviduct, an organ vital to reproduction.

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