Most men don't need PSA testing. The risks are too great, the benefits too few. But you will likely need to bring it up.

Is there such a thing as overearning? The answer appears to be, "yes." People in a revealing series of studies were offered the chance to earn as much as they could or enjoy a bit more leisure. All were told to do what would make them happiest. Many overconsumed, even when they knew they couldn't take it with them. But when limited as to how much they could earn, happiness ratings went up. There may be some lessons for real life in this.

It's not calories that make us fat, argues Gary Taubes. And that's why we keep gaining weight.

A sneaky study uncovers organic foods' halo effect.

Why that guy on the cell phone at the table next to you is so annoying.

Women with good levels of a certain form of iron are less prone to PMS. Potassium is another story.

Tom Colicchio won't be operating any time soon, but he and other top chefs can teach doctors and help patients.

Obsessions and compulsions are the result of excessive brain activity, not anxiety. DBS can help.

Helping others isn't just a good thing to do. It's one of the best ways to ease stress — and prolong life — there is.

The more processed meat — like bacon, bologna, or sausage — we eat, the closer we come to dying.