Today's news: The dangers of manhood | Adolescents and medical care -- a need unfilled | On the prowl for exotic disease | Oxygen for autism? Seems unlikely, but ... | Three cheers for psychedelics >>

The research lasted a decade and involved more than 100,000 women. >>

A simple tune can boost mood, memory and the immune system — and ease stress. >>

It's Monday. Perhaps a regular Monday, or maybe people are grumpier than usual: They've just heard their company is downsizing, say, or something else unpleasant. >>

With older kids getting the disease, it appears the vaccine may require at least one booster. >>

If not controlled, neuroticism may lead to premature death. >>

Baseball players, even those with normal vision, are turning to everything from laser surgery and tinted contact lenses to eye-strengthening exercises and "ocular" machines in search of a competitive edge. >>

A procedure called PGD is used to prevent inherited disorders, but can it improve in vitro pregnancy rates? >>

Smaller multisport events go a fraction of the distance and can be more accessible. Participation continues to increase. >>

Intestinal gas is a sign of a healthy digestive sytem. But there are ways to reduce it. >>

Lymphocytes filter bacteria from the blood, but mutations trigger a slow-growing yet difficult cancer. >>

As boys grow up and become sexually active, they cut back on regular visits to the doctor, sometimes for reasons of cost and lack of health insurance. But a new study cites another factor: boys' beliefs about what it means to be a man. >>

A fictional steroid proves fatal for a ballplayer on 'Numb3rs.' >>

One man sets out to beat George W. Bush's three-mile time. >>

After prolonged periods of sitting or standing, this is an excellent way to stretch and release tension from the muscles in your hips and back. >>

Brief interventions by a physician may reduce patients' alcohol consumption, a study finds. >>

You recently had a question from a person with arthritic fingers who can't use anti-inflammatory drugs. >>

Authors of a new comprehensive analysis of antidepressants for children and teenagers say the benefits of treatment trump the small risk of increasing some patients' chances of having suicidal thoughts and behaviors. >>

In ["Big Games for Little Athletes," April 16], I did not notice any comments from pediatricians or psychologists about age-appropriate developmental activities. >>

A second year of lower mortality suggests a link to stopping replacement therapy for menopause, some researchers say. >>

Quiz results show that most chain restaurant diners can't pick the most nutritional meal. >>

Chondroitin, a dietary supplement widely used for treating arthritic joints, is no better than a placebo for reducing pain, researchers reported Monday. >>