Study offers up new theory on why people yawn

Melinda Bachini received experimental therapy that used her own immune cells to shrink her tumors

Boost in activity in brain region that reads faces may prepare mom to bond with baby, researcher suggests

Slight changes in breathing give away phony laughs, researcher finds

25 percent face food insecurity, which triggers other woes, Minnesota researchers find

As weather warms, some areas in U.S. will have many high ozone days

First Senate Hearing for HHS Secretary Nominee Wide Variation in Hospital C-Section Rates: Study

So-called 'bariatric' procedures appear to cut risk of atrial fibrillation, researchers report

Electrocardiogram might help identify teens at risk of sudden death

A sleep guide by age