Cell Phones Disrupt Teens’ Sleep
Excessive Chatting and Text Messaging Linked to Sleep Woes
June 9, 2008 (Baltimore) -- Wake up, teens: Too much time on your
cell phone may be disrupting your 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, says Gaby Badre, MD, PhD, of Sahlgren's Academy in Gothenburg,
Sweden, and the London Clinic, in England.
The findings apply to both excessive chatting on the phone and text
messaging, he tells WebMD.
The study, which Badre says is the first to look at the psychosocial effects
of excessive mobile phone use, was presented here at SLEEP 2008, the 22nd
Annual Meeting of the Associated Professional Sleep Societies.
(Are you concerned about your
teen’s cell phone usage? Talk with others on WebMD's
Parenting: Preteens and Teenagers board.)
Anecdotal Reports Link Cell Phone Use to Anxiety
Badre says he decided to perform the study after hearing anecdotal reports
that people who spend more than an hour a day on their cell phones tend to
suffer from 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
Badre says he was "amazed" that only one of the teens, a light user,
turned his phone off at night.
Participants were asked more than 40 questions regarding their lifestyle and
sleep habits -- how much they sleep, how long they sleep, how much caffeine
they consume, and so on. They were also asked to rate how sleepy they felt
during the day on a standardized scale.
Additionally, the teens wore a small watch-like device that records
movement, "thereby giving us an objective measure of when they were awake
and when they were asleep," Badre says.