Teenagers' Use Of Cell Phones After Bedtime Contributes To Poor Sleep

Cell phone use after bedtime is surprisingly prevalent among adolescents, and its use is related to increased levels of tiredness after one year. According to the results, only 38 percent of the subjects never used their cell phones after bedtime. Using the cell phone after bedtime about once a week increased the odds of being "very tired" by 3.3, and those who used it more than once a week were 5.1 times more likely to be very tired.