Apparently there's been an increase in head lice recently among teenagers. One expert says it's because teens frequently stick there heads together when taking "selfie" pictures, and that's spreading head lice.

So, tell your teenager not to rub heads with other kids, even for photos?  Even better, tell them that the pure definition of a "selfie" is just ONE person.  Or is it naive of me to think "selfies" might be on their way out?   (Time)

Getty Images