Source: magazines.ivillage.com/redbook

What Turns Him on Most -- at 25, 35, 45
For men, sex means a lifetime of navigating age-specific perils, pitfalls, and performance anxieties. In our 20s, we worry about size and premature ejaculation ... in our 30s, about whether we'll ever have sex again ... in our 40s, about whether we can keep it up like we used to ... and so on. Naturally, we tend to read any problem as a cosmic reflection of some personal failing because we can't leave our egos out of anything, especially the bedroom. And no, thanks, we don't want to talk about it.

But it's your sex life, too. So how are you supposed to deal with your husband's physical changes downstairs and mental craziness upstairs? Step one is awareness. Here, experts and regular guys explain what's going on with your man at every stage and how to keep him (very) happy through the years.

His 20s	His 30s
His 40s	Spice it up