Human Brains Aren't Distinctly Male or Female, Study Says

Instead, researchers find 'mosaic' of masculine, feminine traits

Long-Distance Running Takes Toll on Joints, But It May Be Temporary

Cartilage between knee, ankle and foot joints has ability to regenerate, study suggests

Minority Patients in ER Less Likely to Get Painkillers for Abdominal Pain

ER waits are also longer than for whites, study finds

Obamacare Boosting Breast Cancer Screening Among Poor: Study

Researchers report that expansion of Medicaid coverage is improving access to mammograms

Sugar-Free Sodas, Candy Can Still Damage Your Teeth

But, researchers add that there are easy ways to prevent lasting harm

Teens More Cautious About Sex When Parents Set Rules, Study Finds

Kids tend to delay sex if Mom and Dad keep an eye on what they're doing, who they're with

Weight Loss May Spare Knee Cartilage, Study Finds

Losing more than 10 percent of body weight was linked to slower degeneration of cushioning in joints

Could Your 'Holiday Blues' Be Seasonal Affective Disorder?

This form of depression runs in families, expert says

Dogs May Ease a Child's Fears

Kids with pets in the home were less likely to test positive for anxiety than those without, study found

Why You Need Flexibility Exercises

Some joints lose up to half their motion with age, expert says