The sun can be a good thing and a bad thing. Too much can cause skin cancer and too little will leave us needing vitamin D. We need just the right amount of sun and kids aren’t getting it.

Doctors may soon be able to predict who is at risk for Alzheimer's disease by pinpointing chemical changes in the brain many years before symptoms develop.

While estrogen is primarily a female hormone, both men and women have estrogen receptors. Working with these molecules may lead to better ways to treat and even prevent cancers.

Old wives tales abound concerning pregnancy. One popular one is "if the future mother is really sick, it's a girl." According to recent research, it may cause something else.

Plastic surgery is often thought of as purely cosmetic, driven either by vanity or a sincere desire to remedy what one considers a glaring physical defect.

There are many reasons why you shouldn’t try cocaine – this is just another. Cocaine users are showing up with blackened skin and weakened immune systems – there’s something in the cocaine.

Doctors are always looking for new ways to predict heart attacks and strokes -- especially among patients with normal cholesterol levels who may not appear to be at risk.

Work seems to be more demanding every day and there just never seems to be enough time for anything. So how do most Americans handle it? They make more time by eating at their desk.

The discovery of a new role for a protein that mutates in a common genetic disorder that leaves individuals deaf and blind could explain the cause of the most severe cases of the disorder.

There may be something lurking in the American blood supply that's causing serious health problems. And a researcher suggests that screening for a particular virus needs to be instituted immediately.