ED happens when not enough blood flows to the
penis, preventing an erection. ED is the medical term for difficulties getting
and keeping an erection. Stress, anxiety, and
erectile dysfunction Erectile dysfunction is a very common condition that is
currently affecting more or less 18 million American men over the age of
20. When you age, your risk for ED increases. However, having trouble
maintaining an erection is not always related to age. Most will experience
erectile dysfunction at some point.