"Absolutely," Dr. Oz says. Call it man-o-pause, male-o-pause or whatever you like—the official term is andropause—but Dr. Oz says it does exist.
Dr. Oz explains that women go through menopause when their ovaries stop producing eggs and cause estrogen and progesterone levels to change. Similarly, when men go through andropause, testosterone levels begin to drop. "The amount of testosterone you have at age 60 is a fraction of what you have at age 20. So when that testosterone level begins to drop, you start to see the changes that often afflict men as they get older. They start to lose their muscle mass. They don't have the vitality they used to have. They don't have the virility either. They're not as sexually active."
Fortunately, at least a quarter of men do not experience these symptoms, Dr. Oz says. "The reality is, things like sleeping—which is critically important to restoring growth hormones and allowing you to maintain normal hormone levels—and things like exercise—especially if you can do it for an hour a day—are incredibly important in changing your life cycle so that you start to behave like you're 20 years younger."