Hi. Today I will talk about what happens if we don't exercise? If you don't exercise, you will experience stress, lack of sleep, lower school grades, and an increase in your chances of getting sick. Exercise is very important. The sooner you exercise, the better. Because when we grow up, we increase our internal fat by drinking and smoking and eating late at night, and that's the way to obesity. People who have already done exercise know the need for exercise from an early age, after eating and drinking, you will be able to control your diet after that, and when you get older, you don't have to become obese. I recommend that you exercise three times a week, if not every day, because that alone can prevent obesity.