Genes linked to inflammation are more active in winter, a study hints. That might partly explain why some diseases, including Type 1 diabetes and rheumatoid arthritis, are more likely to start then.
Some companies are refusing to pay employee hospital bills that they think are out of line. Instead, they pay what they think is reasonable. So far the gambit appears to be working.
Research suggests that genes that make a natural sunscreen jumped from algae to an ancestor of vertebrates hundreds of millions of years ago. Some animals kept the ability. Others didn't.
A carrot isn't enough — bring on the stick. A study finds smokers are more likely to quit tobacco if they lose some of their own money after a relapse, than if they get a bonus for quitting the habit.
Nepal was just recovering from the first earthquake when a second one hit on Tuesday. People are fearful but more determined than ever to rebuild their country.
The Affordable Care Act has made available more assistance to new mothers so they can raise healthier kids. But critics say the standards for those programs are too lenient.
The announcement, on state-run radio, comes amid continued fighting a day after a lower-ranking general had declared a coup against President Pierre Nkurunziza.
After days of shifting positions on whether he would have gone to war in Iraq, even knowing what we know now, Jeb Bush did an about-face, saying definitively that he would not have gone in.
The Labor Department's investigation follows an NPR/Mine Safety and Health News series about the failure of federal regulators to collect millions in safety penalties at the nation's mines.