12. Foreplay.

Regardless of how you get revved up for better sex, Matthew N. Simmons, MD, PhD, of the Glickman Urological and Kidney Institute in Cleveland, suggests not skimping on the foreplay — no matter how long you have been together as a couple. “Foreplay contributes greatly to stronger orgasms and improved sex,” he says. “Gearing up your autonomic nervous system will increase sensitivity, excitement, and strength of orgasm. Your patience and attentiveness will pay dividends.”