Hair loss (alopecia) can affect just your scalp or your entire body, and it can be temporary or permanent. It can be the result of...

Cholesterol is a waxy substance found in your blood. Your body needs cholesterol to build healthy cells, but high levels of cholesterol...

Hodgkin's lymphoma is a type of cancer that affects the lymphatic system, which is part of the body's germ-fighting immune system. In...