Parents urged to limit kids' texts and tweets

The recommendations are bound to prompt eye-rolling and laughs from many teens but the influential group said 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.

It's not a major cause of these troubles, but "many parents are clueless" about the profound impact media exposure can have on their children, said Dr Victor Strasburger, lead author of the new policy.

"This is the 21st century and they need to get with it," said Dr Strasburger, a University of New Mexico adolescent medicine specialist.

The policy is aimed at all kids, including those who use smartphones, computers and other internet-connected devices.

It expands the academy's longstanding recommendations on banning televisions from the bedrooms of children and teens and limiting entertainment screen time to no more than two hours