Three years ago, Laura Gaither and her family spent their summer vacation in Panama City Beach, Florida. One afternoon, while rinsing sand off her feet, the 35-year-old Alabama resident felt something ...

A new study suggests that humans have a distinct, itchy defense response to ticks and other ectoparasites. By Sabrina Imbler In a way, nausea is our trusty personal bodyguard. Feeling nauseated is ...