How mobile light affects our brain and body.
The designers of our mobile phones (smartphones), tablets, and laptop screens are ready to create incredibly powerful lights. These screens glow bright enough to be seen during a sunny day. At night, they're so strong that they have been compared to a "little window" that daylight can peer through. That's why watching your phone in the dark may be a terrible idea. Our bodies naturally follow a cycle that permits us to remain awake and alert during the day and helps us get essential rest in the dark . But once we check out these screens as we're preparing to sleep, our brains get confused. Bright light can make the brain think it is time to prevent producing melatonin, a hormone that provides your body "time to sleep" cues. By disrupting melatonin production, smartphone light can disrupt your sleep cycle, almost like an artificially induced fatigue . that creates it harder to fall and stay asleep — which could lead on to serious health problems.