Mar 12, 2014 — Research involving more than 1,500 patients suggests people with Crohn's may have too many of the types of gut bacteria that tend to rile the immune system and too few that reduce inflammation.
Mar 12, 2014 — In the 1990s, the federal government launched a program to get single mothers out of public housing and into more affluent areas. David Greene talks to Ronald Kessler, the lead author of the study.
Mar 11, 2014 — Wouldn't it be great to be able to scan your genes and find out your disease risk? Those scanners exist. But a test of their usefulness for medical care found them not as accurate as one would hope.
Mar 11, 2014 — The reason for the link isn't clear, but researchers say obesity's effect on self-image and self-esteem might be partly to blame.
Mar 10, 2014 — A study finds that people over 50 have difficulty getting rid of unneeded possessions. Some of this is for emotional reasons and some of it for physical ones.
Mar 10, 2014 — Can a behavioral economics theory explain military standoffs such as the one in Crimea? Research on military conflicts shows that weakness, not strength, often leads to aggression.
Mar 9, 2014 — Since the 1970s, hallucinogens have been classified as Schedule I drugs, indicating they have no medical use. But researchers say there are benefits and that work must continue.
Mar 9, 2014 — A new blood test for people in their 70s can detect who will develop Alzheimer's disease. A positive result could help people prepare. But since there's no treatment, will people really want to know?
Mar 6, 2014 — The park's bears have developed a taste for human food, and that's gotten them in big trouble. But efforts to teach campers to lock up food are helping solve the problem, a bear hair analysis shows.
Mar 5, 2014 — Removing bacteria and other impurities from water could be done more cheaply thanks to researchers at MIT. They're taking advantage of the way trees move water to filter it.