Everyone blames blue light for poor sleep. “Don’t look at screens before bed!” But the truth is more complicated. Blue light does suppress melatonin. But studies show the content you consume matters just as much as the light itself. Watching a stressful news story or doomscrolling through arguments triggers your brain’s stress response—keeping cortisol high, which blocks deep sleep. On the flip side, some people use screens to calm down. A funny sitcom or nature video can actually lower heart rate and make falling asleep easier. Here’s the kicker: in one Harvard study, people who read on tablets slept fine—if the content was relaxing. Those who read stressful content struggled, even with filters. So maybe it’s not “blue light” that’s killing your sleep. Maybe it’s what you feed your brain before closing your eyes. #SleepHealth #BodyHacks #DigitalLife