Scientists have evidence that the epidemic in Latin America may have started to subside. But the U.S. isn't out of the woods yet.
A new study looks at the link between racial bias and the Tea Party. Researchers found that people who looked at images of Barack Obama that were edited to make his skin look darker were more likely to express support for the Tea Party.
Neil Hammerschlag has looked inside the mouth of a wild tiger shark and lived to tell the tale. He says that sharks pose only a very small risk to people: "Humans are not on the shark's menu."
Little kids who hit the sack early may be less likely to get overtired and fussy in a way that messes with their sleep cycle, researchers say.
Researchers in Seattle have created a public observatory for studying the visual circuitry in a mouse's brain. Among the attractions: watching 18,000 neurons respond to Orson Welles' Touch of Evil.
A new study finds people who are well-hydrated have lower body weights and lower odds of obesity. It adds evidence to the theory that drinking lots of water may help in weight management.
In 2014, after disastrous spills and opposition from environmentalists, the Environmental Protection Agency imposed new rules on the storage of coal ash. Now utilities are planning to close down the ponds that hold the toxic ash, but it has to go somewhere. Environmentalists say the safest place for it is in securely lined landfills, such as the municipal landfill in Wayne County, Ga. Locals are fighting the plan, but there's not much they can do.
Despite government policies designed to encourage health coverage for these toddlers, many families are thwarted by confusing rules and regulations, advocacy groups say.
And they're not unplugging from email and text messages when they do get away, an NPR poll finds. "So they're taking their stress along with them wherever they go," says a Harvard scientist.
There are plenty of proven techniques that can help parents soothe the sting of the needle. And guess what? The parent's attitude can matter more than the actual pain of the shot.
Researchers fed a program 600 hours of videos and TV shows to see if it could learn about and predict human interactions — hugs, kisses, high-fives and handshakes. It was right nearly half the time.
President Obama has tried to diversify the federal judiciary by appointing more black judges. Data show black federal district judges are overturned on appeal 10 percent more often than white judges.
Shankar talks with psychologist Jean Twenge about narcissism, millennials, and the rise of "me" culture.
Scientists who have been tracking cloud patterns over the past two decades say the shifts they're seeing seem to correlate closely with what's predicted by computer models of Earth's changing climate.
When it comes to produce, the answer is yes, experts tell us. But the reasons are complicated — and sometimes mysterious even to restaurant critics, chefs and food scientists.
They're one of the Hebrew Bible's greatest villains, but not much is known about the ancient Philistines. An uncovered cemetery, which researchers say is the first of its kind, could change all that.
A few people with high-functioning autism say they've been briefly helped by exposure to transcranial magnetic stimulation. But there's a cost, one mother found, to getting ahead of the science.
Kim was an accomplished doctor with plenty of friends. But a few pulses from an electromagnet to her brain at age 54 made her reconsider how she sees herself — and the world.
NPR's Invisibilia podcast tells the story of a woman who participated in an experiment that gave her a whole new frame of reference and allowed her to see the world in a different way.
Using gold, silicone, and heart cells from a rat, scientists have made a tiny artificial stingray. The engineering involved in propelling it could help make a heart that's more than a mechanical pump.