According to the Massachusetts Male Aging Study, about 40% of men are affected by erectile dysfunction at age 40, going up to 70% by age 70. And, almost all men, at some point in their lives, will experience ED. Based on this, a common question for men is “How do I know if I have erectile dysfunction?”
Simply, ED is when a man cannot get an erection suitable for sexual intercourse because the erection is not firm enough, does not last long enough, or does not happen at all. Here we look at everything you need to know about erectile dysfunction, including the signs, causes, and proactive steps you can take if you think you have it.