Many young people and adults choose to abstain from sex these days for many different reasons. Even if you have had sex before, it may be logical to abstain from some aspects of your life, because of your emotional and physical health. Abstaining from sex means different things to different
New research shows that marijuana causes genetic changes in sperm, although it is unclear what the effect of those changes is or whether it is passed on to the children of men. But scientists said their findings suggest that men who try to have children should think about avoiding marijuana.