Why sex is useful?

Films often depict men having
heart attacks in the throes of passion, yet the estimates of this
happening are about one in a million. Research actually shows that
having sex several times a week may cut your risk of a heart attack or
stroke in half.

"Sex releases feel-good hormones such as dehydroepiandrosterone and
oxytocin," says Dr Darren Russell, president of the Australasian Chapter
of Sexual Health Medicine. "You get more blood moving through the blood
vessels."