do exercises is so crucial. why do exercises so important to our health? First, doing exercises can improve blood circulation,speeding up the supply of nutrients and oxygen to every part of the body and the removal of waste from the blood through sweating and exhalation. Second, doing exercises can promote a healthy metabolism.it helps with the digestion and absorption of food,thus giving everyone a good appetite. third,doing exerciese can help consume excessive fat in the body ,preventing people from putting on too much weigh, thus usually need a good rest and a sound sleep at night. In conclusion, doing exercises not only keep us fit and strong, but also help us to be successful in our life.doing exercises is good for young people so we should spare some time to taken an active part in various kinds of exercises.