Dutch researchers have built a three-dimensional model of a type of virus that causes SARS in a step that could one day help in the battle against the deadly disease.

A single gene appears to play a crucial role in deadly breast cancers, increasing the chances the cancer will spread and making it resistant to chemotherapy, U.S. researchers said.

Many adolescents are falling through cracks in the health care system — what a major new report calls missed opportunities to shape the next generation’s health.

Reports that a hormone imbalance may  be responsible for Apple chief executive Steve Jobs’ recent weight loss do little to quell concerns about the pancreatic cancer survivor’s health, endocrinologists said.

A new study suggests that parents and health-care professionals can use social-networking sites to curb risky teen behavior.

If you’re doing some financial belt-tightening at the same time you’re working to whittle your waistline, don’t give up. There are  ways to keep that New Year's resolution.

In Danny Thrall's heart, he was a swimmer. But his heart betrayed him.

Try this thorough list of the everyday items that might be doing you wrong that may harm your health — and the easy alternatives that are free of worrisome chemicals.

A federal study is using short videos to go beyond pamphlets on safe sex and deliver the message to women who might otherwise tune it out.

The World Health Organization confirmed the Ebola virus had killed three people in the south of the Democratic Republic of Congo and said more deaths were being investigated.

A new study is investigating whether a tea tree oil body wash can prevent the drug-resistant super bug MRSA in critically ill hospitalized adults.

Children who are breast-fed for at least 4 months may have better lung function than those breast fed for shorter periods of time and kids who are bottle fed, a new study suggests.

China's worst product-safety scandal in years has hit home for thousands of U.S. adoptive parents who are seeking answers about potential effects of melamine in tainted formula.

A mixed-race British couple has defied the odds — twice — by producing two sets of twins in which one sibling appears to be black and the other white.

Results of a Swedish study hint that children born prematurely have some risk of developing anxiety, depression or other psychiatric disorders.

Noscapine, a natural substance found in cough medicine, may prove useful in treating advanced prostate cancer, according to studies in mice.

Federal regulators are calling on physicians to return a chemical agent made by Advanced Medical Optics Inc., saying it has been linked to dozens of eye problems.

At least 33 people who chose to end their lives last year in a national park, a higher number than in recent years.

Everyone tosses and turns for different reasons. Here's how to make sure the whole clan gets the Zzzs they need to stay happy and healthy.

Web-savvy moms who breast-feed are irate that social networking sites like Facebook restrict photos of nursing babies, highlighting the struggle to police a diverse  membership.

Researchers may have found a new way to curtail diseases spread by older mosquitoes:  Breeding the pests to carry an insect parasite that causes earlier death.

A one-of-a-kind music program at one of the country's largest pediatric cancer centers gives patients a chance to record songs in a fully equipped recording studio at the hospital.

Sexual dysfunction that commonly occurs in morbidly obese men improves after weight loss surgery, according to a new study.

Out of shape and stressed out? Exercise can help on both accounts. If you've resolved to give yourself a tune-up in 2009 — or more like a full-body makeover — we've got lots of expert advice to help you reach your get-fit goals.

An executive for the dairy company at the heart of China's tainted milk scandal pleaded guilty Wednesday to charges that could lead to the death penalty, state media reported.