“Primary dysmenorrhea” is the term for painful periods that occur in the absence of any underlying pelvic disease. The pain occurs because of an increase in chemicals called prostaglandins during ...

Testosterone is the primary androgen — or male hormone — in your body. Low testosterone affects up to 39 percent ...

Older people can face a lot of challenges when they need to see a doctor or go to a hospital. Your primary care doctor can guide you through the sometimes confusing health care system, acting as a ...

Momentum investing is all about the idea of following a stock's recent trend, which can be in either direction. In the 'long' context, investors will essentially be "buying high, but hoping to sell ...

Momentum investing revolves around the idea of following a stock's recent trend in either direction. In the 'long' context, investors will be essentially be "buying high, but hoping to sell even ...

Primary immunodeficiency (PI) is a group of more than 400 disorders that affect the immune system. In people with PI, the immune system is weakened or missing important components, making it harder ...