Life after 50: A Harvard study of male sexuality

Even the most optimistic men know that the clock ticks for all of us. With each passing year, our bodies change, as does our behavior.

It's certainly no surprise that male sexuality changes over time. Some 400 years ago Shakespeare asked, "Is it not strange that desire should so many years outlive performance?" Still, a major Harvard study of male sexual function in maturity does contain some surprises. It reports that sexual dysfunction is common and increases rapidly as men age. But it also says that simple lifestyle choices can slow the tick of the clock for many of us.