Environmental stressors can turn on cells' genes when they're supposed to be off.

Kids with chronic kidney disease who are born at a low weight have a poorer growth rate than kids born at normal weight.

The diet is characterized by daily consumption of fruits and vegetables, whole grains, fish and moderate consumption of alcohol.

But no prostate cancer risk was apparent for balding at age 30 or 40.

If you look a little old for your age, that doesn't necessarily mean you have poor health, a new study finds.

The PSA test is infamous for a high rate of false positives and inability to distinguish between benign and dangerous cancers.

U.S. life expectancy for men increased by more than 5 years from 1980 to 2006, and by about 3 years for women.

An antibiotic called rifaximin has shown promise in treating irritable bowel syndrome (IBS) in two large clinical trials by targeting bacteria in the gut.

Actress Catherine Zeta-Jones checked herself into a mental health facility for treatment for bipolar II disorder after stressful events.

Group says FDA decision is overreach by government.

A genetically modified form of a common probiotic reduced colon inflammation in mice.

Time spent in traffic accounted for the most heart attacks, the study said.

Estrogen therapy can cut breast cancer risk by 20 percent, according to the new research.

The FDA announced today that alcoholic beverages with added caffeine are illegal and dangerous. Experts explain why these drinks pack such a punch.

1 in 3 girls will finish all three HPV vaccine doses, according to the new study.

Women who drink 10 cups a day of green tea don't have a lower chance of breast cancer than women who drink less than a cup a week.

Gay men are almost twice as likely as straight men to report having had cancer in adulthood.

Smoking increases Alzheimer's disease risk by 157 percent, a new study says.

Here's a countdown of four diets that may seem to work at the beginning, but aren't promising for lasting weight loss.

Elderspeak and loss of independence are frustrating to people with dementia, a health expert says.

Dave Duerson shot himself in February.

People with many cardiovascular risk factors saw their mental abilities decline over a 10-year period faster than people who had only a few risk factors.