Field Guide to the Casanova: The Lady-killer Files

Janka doesn't feel any shame about his player days. But he did have to pick up a whole new set of skills to make his current relationship work. "I used to be kind of an asshole, very unyielding," he says. Learning to accommodate and not just bait a woman has proved rewarding: "The warmth and support and love of my girlfriend easily outweigh the titillation of the hunt."

Are You Too Much of A Tomcat?

Getting hooked on the emotional rush of casual sex could undermine other aspects of your life. Ask yourself whether you are addicted to love, or just having a good time:

• Do you keep secrets about your romantic life from people who are important to you?
• Do you make promises to yourself—such as vowing to stop flirting with your friends' wives—that you find you can't keep?
• Do you sleep with people whom you consider to be inappropriate sexual partners?
• If you answered yes to any of these, your active sex life might be doing you more harm than good. Psychologist Nando Pelusi suggests trying to shed the compulsion, even though your sex drive is here to stay. You may have to internalize a new message: You don't have to have something just because you can have it. Therapy could help you combat feelings of low self-worth and cravings for validation from women.