Take A Hike To Do Your Heart And Spirit Good
For many Americans, an NPR poll suggests, walking is their most consistent exercise. But how much can a moderately paced walk really help your health?
Research News
Genetically Modified Salmon: Coming To A River Near You?
Scientists are trying to predict what might happen if genetically modified salmon escaped growth facilities. It's a scenario often raised by critics who don't want the FDA to approve sale of the fish.
That's Not Fair! Crime And Punishment In A Preschooler's Mind
Children as young as 3 years old will step in to right the wrong if they see someone being mistreated, a study finds. But they aren't as keen as 5-year-olds to dole out punishment.
Why Ants Handle Traffic Better Than You Do
Ants don't show road rage. In fact, some research shows they rarely get into traffic jams and are able to maintain a steady speed even as their numbers swell. Can physics explain it?
Review Raises Troubling Questions About Marijuana's Safety, Effectiveness
A report finds mixed results when it comes to how well medical marijuana works to calm pain and control symptoms. And, an editorial says states legalizing pot for medical use may be jumping the gun.
Examining Race-Based Admissions Bans On Medical Schools
Researchers explored the effects of black and Latino graduation rates from medical school, following a ban on race conscious admissions policies in several states.
DNA Confirms Kennewick Man's Genetic Ties To Native Americans
The new evidence suggests the ancient skeleton is closely related to members of a Washington state tribe. The findings are likely to rekindle an old debate between scientists and Native Americans.
Pickled Foods May Ease Anxiety, Research Suggests
A study finds people who eat more pickles, sauerkraut or kimchi have less social anxiety. It's not clear if the food made people feel better, or if the people who felt better ate that food.
DNA Tracking Of Ivory Helps Biologists Find Poaching Hotspots
To stop elephant slaughter in Africa, zoologist Sam Wasser spent years extracting DNA from elephant dung and tissue. Much of the world's poached ivory, he discovered, comes from just two hotspots.
Hunting Ways To Keep Synthetic Estrogens Out Of Rivers And Seas
Hormones from medical treatments wind up in wastewater, and that can be a problem. Some scientists think a version of a household chemical, hydrogen peroxide, could be part of the solution.