The latest news on behavior
U.S. ranks No. 6 on promiscuity list for major nations.
Innovative research tracking people over a 20-year period suggests your smile goes farther than you think
Immune cells stick inside blood vessels causing inflammation, blockage, study finds
A Seattle project was linked to better education, mental health 15 years later
Patients typically wound themselves, then place objects in the wound, researchers say
Fellow occupants can help keep driving safe, research shows
Learning reaches its peak during the pivotal teen years. But beware: So does vulnerability to mistakes.
Kids, parents and schools need to work together to stop abusive behavior, experts say