A survey of British teens revealed that nearly a third are not sleeping enough at night, dozing only for four to seven hours. The probably cause, according to the study, is their device-attached lifestyle. Many of the kids had either a computer, phone or music player in their bedrooms, and a good percentage often went to sleep with one of those devices still turned on.
The result, according to a group called The Sleep Council, is that the kids aren't resting well or long enough to let their brains gear up for the next day. The researchers who conducted the study of 1,000 British teens say these shortened nights are the equivalent of junk food, hence "junk sleep."—Gregory Mone