After 9o, children should watch less mobile phones, study harder, eat less take-away barbecues, do more exercise, get up early to help their parents sell vegetables and cook, and eat on time, especially breakfast. You young people don't eat much breakfast, five don't eat snacks, and six don't eat health products. You want the sun at eight or nine o'clock in the morning, sunny and charming, and you want to create a world in the future.