Erectile dysfunction (ED) is the inability to get or keep an erection firm enough to have sexual intercourse. It is also sometimes also referred to as impotence. Occasional ED is not uncommon. Many men experience it during times of stress.
National Institute on Drug Abuse (NIDA): One of the National Institutes of Health in the U.S., NIDA's mission is to lead the nation in bringing the power of science to bear on drug abuse and addiction through support and conduct of research across a broad range of disciplines and rapid and effective dissemination of results of that research to ...
Definition of nidus. plural. nidi. play \ËnÄ«-ËdÄ«\ or. niduses. 1 : a nest or breeding place; especially : a place or substance in an animal or plant where bacteria or other organisms lodge and multiply. 2 : a place where something originates, develops, or is located. a type of contact lens that proved to be a nidus of infection.