Men ages 35 to 80 saw only saw an average 1 percent drop in testosterone levels per year during over five years, a new study led by researchers from the University of Adelaide in Australia says. But men who became obese, smoked, or suffered depression experienced much larger declines, Medical News Today reported June 25.
That means eating right and exercising, staying happy, and quitting smoking may be effective ways to keep your testosterone up throughout middle age, the study suggests. Engaging in regular sexual activity also helps, as does being married — perhaps because married men are generally happier than bachelors.
“Declining testosterone levels are not a natural part of aging,” says study co-author Gary Wittert, M.D.
The findings will be presented in June 2012 at the Endocrine Society’s 94th Annual Meeting in Houston, Texas.