SUNDAY, Feb. 5 (HealthDay News) -- More than 60 percent of American teens have at least one profile on a social networking site, and many spend more than two hours a day on social networking sites, according to the American Academy of Child and Adolescent Psychiatry.

SUNDAY, Feb. 5 (HealthDay News) -- Although there is a stigma associated with having head lice, infestations with these small insects are common and nothing to be ashamed of, according to Dr. Hannah Chow-Johnson, a pediatrician at Loyola University Health System.