6. It helps you live longer-if you do it often enough
A Welsh longitudinal study examined the relationship between mortality and frequency of sexual activity. Researchers found that the risk of dying in any one year was 50 percent lower among men who had sex twice or more a week than among men who had sex less than once a month. Even when controlling for such factors as age, social class and smoking status, the study concluded that the more sex, the better.
7. It promotes a feeling of well-being
Sexual activity fosters everything from sexual and reproductive health to happiness. And one U.S. study of more than 1,800 people found that surges in oxytocin and endorphins (which have an apparent sedative effect) occurred as a result of orgasm, explaining why sex often leads to falling asleep.