As men age, testosterone levels decrease. This can cause a number of physical and emotional changes, including weight gain, loss of bone density, depression, and reduced sex drive. A new study, however, suggests that for men who are overweight or obese, a 12-week aerobic exercise program can significantly boost testosterone levels.
[A man on a treadmill]
Researchers found 12 weeks of regular aerobic exercise increased testosterone levels for overweight and obese men.

Lead researcher Hiroshi Kumagai, of Tsukuba University in Japan, and colleagues recently presented their findings at the American Physiological Society's Integrative Biology of Exercise VII Meeting in Phoenix, AZ.

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