Keep It Up

As a man ages, a slow decline takes root that, day to day, is imperceptible. Sometime around age 30, levels of the male hormone testosterone begin to drop each year. One morning he looks in the mirror and sees someone who he doesn''t recognize. He''s tired-looking, lacks motivation, his belly is sagging over his belt, his mind is foggy and maybe even his sex drive has evaporated. What happened? "O...