Impotence is a condition that consistently affects a person’s ability to achieve or maintain an erection, or ability to achieve ejaculation. It’s a form of erectile dysfunction (ED).
There can be several contributing factors for impotence. These include both emotional and physical disorders. According to The Merck Manual, an estimated 50 percent of men ages 40 to 70 experience some ED at one time or another. The risk of impotence increases with age. via: healthline.