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A study found that 80 percent of teens admitted to using their phones when they were supposed to be sleeping – a practice some call.

Learn about the importance of sleep for teens, challenges to getting melatonin production from exposure to the light from cell phones.

Help your teen master responsible screen use for better sleep and a To make matters more complicated, excessive mobile phone use has.

Like a trusty guard dog, your smart phone probably rests right next to you (or even under your pillow) every night when you go to sleep. Some research has shown that teen phone use negatively affects sleep, which leads to depression and anxiety. The National Sleep Foundation.