ED or male impotence is when a man can’t get an erection that stays hard enough for sex. Most men will encounter the problem at least once in their lives. It can sometimes just happen sporadically, and resolve itself. But at other times it can persist and become a problem for couples when they want to have sex.
There are lots of reasons why it can happen. Physical causes can often be behind ED. Any medical condition that interferes with circulation, such as high cholesterol or diabetes, or with the transmission of nerve signals from the brain, can prevent a man from getting an erection, as can lifestyle factors like smoking, drinking too much alcohol, being overweight or using recreational drugs.
Emotions and psychology can play a part too. For example men who are having sex with a new partner for the first time can sometimes feel eager to impress and put pressure on themselves to perform well. Stress is sometimes a factor as well, and this isn’t always necessarily related to sex.