Though people with Williams Syndrome are known for being hyper-social, the disorder has many other facets, some of which are incredibly isolating. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Isabelle, 9, has a rare genetic disorder called Williams syndrome. One of the symptoms is that people have an inability to distrust anyone, even strangers. Isabelle often picks at her hands as a means of relieving stress. Jesse Neider/for NPR hide caption

itoggle caption Jesse Neider/for NPR

In general, researchers have found that kids understand the need for some rules, particularly safety rules like not hitting other children. But when it comes to parents dictating what a child should wear or who they should play with, many kids resist. iStockphoto.com hide caption

itoggle caption iStockphoto.com

In response to reports of cars unexpectedly surging forward, researchers set up some experiments to study the problem. The results were somewhat surprising. iStockphoto.com hide caption

itoggle caption iStockphoto.com

In drug-testing, the researchers usually don't know which patients get the drug and which get the placebo. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Bipolar may not be the right diagnosis for some kids, according a panel of experts with the American Psychiatric Association. iStockphoto.com hide caption

itoggle caption iStockphoto.com

A new approach for the mental health community, "psychological first aid," takes a more practical, social work stance when dealing with disaster survivors. "You can't find your son? Well, this is who you need to talk to at the Red Cross to find your son." Stan Honda/AFP/Getty Images hide caption

itoggle caption Stan Honda/AFP/Getty Images