Throughtout our long life time, we always focus on earning money and easily ignore our health. We always think that we are too young to do everything well without much sleep. Until we don't feel well and are told that we have a lot of terrible health problems. We suddenly realize that keep healthy is the most important thing throughtout our life. There is a joke say that the worest thing during our life is that we have enough money, but we died. However, let everyone understands the importance of keeping healthy is really hard. This reminds me of another Chinese saying: you can't stop a man who is going to bump into a wall. Maybe the man knows what he is doing, but he pretends not to be seeing other problems.So, listening to the people who ingored their health when they were young is the best thing to improve pur health. Only we are afraid of ding something, we won't do it!