CHICAGO (AP) — Doctors 2 parents: Limit kids' tweeting, texting & keep smartphones, laptops out of bedrooms. #goodluckwiththat. The recommendations are bound to prompt eye-rolling and LOLs from many teens but an influential pediatricians group says parents need to know that unrestricted media use can have serious consequences. It's been linked with violence, cyberbullying, school woes, obesity, lack of sleep and a host of other problems.