If children keep taking deep breaths, it is mainly due to the following conditions: First, it is a symptom caused by children suffering from myocarditis. When children are infected with enterovirus, some enterovirus can attack the heart muscle of children and cause myocarditis. When a child has myocarditis, it can lead to chest tightness and constant deep breathing. In this case, the diagnosis can be further confirmed with a cardiac enzyme profile and an electrocardiogram. If the diagnosis of myocarditis is confirmed, the child should be given medication to protect the heart muscle in a timely manner. For example, children can be given high doses of vitamin C or fructose diphosphate. Secondly, it is caused by emotional depression in children. If a child suffers from depression, it can also cause the condition of old deep breathing. And the child’s spirit is often depressed at this time, and the child is usually not able to do things all the time. This is the time to give the child psychological counseling in the psychology department.