Many people just seem to feel better when they exercise daily. They tend not to tire as easily. Some people even say they are happier. Teenagers get much of their support from friends. Friends often are made during sports activities.
Exercise can give people the opportunity to mix with others.
Sometimes people feel sorry for themselves. When they do this, they become stressed and produce adrenaline that can raise the blood sugar level. Other people like to watch TV and eat snacks that raise the blood sugar level. Exercise is a good way to improve a bad mood and to change a bad habit. In this way, exercise serves a double purpose.