I know some devices have the special lighting settings, but even those don't completely eliminate all the harmful effects of technology. Brian Isaacson More Quotes by Brian Isaacson More Quotes From Brian Isaacson Your body produces more melatonin, your natural sleep chemical, when it's nice and dark, if sunlight or other light gets into your brain, that's when [ melatonin levels ] start going down. Brian Isaacson health-news