weak because too much screen time can easily harm your kid’s eyesight. They don’t do any physical activity because of using mobile and sitting in one place. Because of not using sunlight they suffer fro…Many of the kids started watching those videos because of having mobiles which they don’t need to. Watching the videos and Cartoons make their eyesight weak because too much screen time can easily harm your kid’s eyesight. They don’t do any physical activity because of using mobile and sitting in one place. Because of not using sunlight they suffer from vitamin D.