Exercise strengthens the body and increases the immune system. The right kind of exercise is very important for children with asthma. For children whose asthma has reached control, they can participate in appropriate activities by choosing the right venue and the right type of exercise. The best way to exercise is to choose activities that allow intermittent rest: such as swimming, jogging, walking, soldier ball, badminton, etc. Avoid racing, soccer, bicycle racing, etc. Avoid the following environments: dry and cold environments. Environment with heavy air pollution. Near construction sites, dusty environments. Freshly mowed grass, or high pollen levels in the air. Gymnasiums with excessive dust. Minimize exercise in the following conditions: when you are recovering from an illness or have had an asthma attack. Excessive fatigue. Emotional stress or excessive psychological pressure. Do warm-up exercises (10-15 minutes of limb stretching or 3-5 minutes of walking or trotting) and gentle exercises (15-20 minutes of limb stretching and 5-10 minutes of walking or trotting) before exercising. Be careful to carry a bronchodilator aerosol (bronchial asthma quick relief medicine) such as Ventolin, AsthmaControl while exercising. It is best to be accompanied by a family member. Five elements of exercise for children with asthma: i. Do perform warm-up and gentle exercises. Start with a low-intensity exercise program and then slowly build up. Engage in intermittent exercise staggered with rest. Avoid opening your mouth and breathe through your nose. Five, replenish enough water.