I happen to be a 20-year-old college student. I am most concerned about protecting internal organs, such as heart, lung, liver and kidney. The life rules of college students who want to stay here are very chaotic, and sometimes they stay up until three or four in the morning, which is easy to hurt their liver. Sometimes sleeping late and not eating breakfast can easily lead to gallstones. Less exercise, so poor cardiopulmonary function, people are easy to get tired!