The light emitted from our copious electronic devices–computers, e-readers, tablets, and, yes, phones (oh, and TV for those still watching them)–can adversely impact our sleep. Not only are the activities addictive, but the light emitted can reduce pineal production of melatonin. I recommend stopping all screen time at least 2 hours prior to bedtime–and set a healthy bedtime which allows 8 hours of sleep nightly. Read more here.