Cell Phones and Teens' Sleep

     European researchers report that teenagers who use their phones more than 15 times a day have more trouble falling asleep and staying asleep than those who use their phones sparingly .Heavy cell phone users are also more likely to be stressed out and generally feel tired,

The findings apply to both excessive chatting on the phone and text messaging

Anecdotal Reports Link Cell Phone Use to Anxiety

The researchers studied 21 healthy teens, aged 14 to 20, with regular working or studying hours and no sleep problems.

Ten of the adolescents were light users, making or sending fewer than five calls and/or text messages a day.

The 11 heavy users made or sent more than 15 calls and/or text messages a day. Four of them sent more than 30 text messages a day, and one sent more than 200.