Good living habits, due to the increasing academic pressure, make more and more students have to be busy studying all day, or staying up late to read books, or staying up late to do problems. In the long run, on the one hand, bags under the eyes and dark circles are easy to appear, and on the other hand, it will make the body function unbalanced and aggravate obesity. Therefore, I suggest that everyone try to ensure that the rest time is not less than six hours every day, and don't turn it upside down day and night.