Dear Dr. Donohue: I am a 24-year-old college graduate, working in a fast-food restaurant because I can't find a job in my field. One of my fellow workers asked me if I am on the birth-control pill. I ...

High doses of folic acid do not prevent precancerous colon polyps in people prone to them and may actually increase the risk of developing the growths, a new study finds. It’s the latest evidence that ...