Risk

We all tend to adjust our opinions based on what other people think. But young teenagers pay far more attention to other teens than they do to adults, a study finds. That explains a lot, doesn't it?

Public health officials are telling us not to freak out about Ebola in the United States. But fear is what motivates people to protect themselves from danger. When should we worry?

Folks in the U.S. are in a panic about catching Ebola. Let's just say, you're more likely to be eaten by a shark. The situation in Liberia, however, is starkly different.

Galveston, Texas, officials meant well when they tested a passenger while she was still at sea. But some say airlifting a blood sample in a Coast Guard helicopter was needlessly alarming.