Erectile dysfunction affects over 40% of men over 40, yet our understanding of the condition remains limited. Research on ...

A test for fecal occult blood looks for blood in your poop ... For some tests, you put a special pad or tissue from the kit into the toilet and tell your doctor if it changes color.

Fury has erupted in Japan over the contents of a tape recording of the first meeting held by the health ministry's AIDS study panel ... 1983 that non-heat-treated blood products used to treat ...

Although they may question when and how, most scientists accept that human immunodeficiency virus (HIV)-1 came from simian immunodeficiency virus (SIV) carried in the chimpanzee subspecies Pan ...