What Staring At A Screen All Day Is Doing To Your Brain And Body | The Human Body

Americans spend more than seven hours a day starting at digital screens. This screen time often leads to blurred vision, eyestrain, and long-term vision problems like nearsightedness. What’s more, screens emit blue light, which disrupts our circadian rhythms at night when we’re trying to fall asleep. And all of this screen time might even change our brains. A new and ongoing study supported by the NIH found that some pre-teens who clocked over seven hours a day on screens had differences in parts of their b