How smartphone light affects your brain and body

The designers of our smartphones, tablets, and laptop screens have been able to create incredibly powerful lights. These screens glow bright enough to be seen during a sunny day. At night, they're so strongthat they'vebeen comparedto a "little window" that daylight can peer through. That's why looking at your phone at night is a terrible idea. Our bodies naturally follow a cycle that allowsus to stay awake and alert during the day and helps us get essential rest at night. But when we look at the...