When playing the harmonica, use abdominal breathing, which can mobilize the alveoli of the middle and lower lungs, strengthen the breathing depth and improve the lung function. At the same time, it can also help muscle relaxation and reduce bronchospasm.

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Playing the harmonica has the following four advantages: 1. Can improve lung capacity. Playing harmonica requires abdominal breathing, which can improve breathing depth and vital capacity, and is very beneficial to asthma patients. 2, playing the harmonica can cultivate personal interests and emotional sustenance. You can vent and express your emotions by playing the harmonica, so that you can feel happy and relaxed. 3. Promote gastrointestinal peristalsis. Because the pronunciation of the harmonica depends on the airflow, people's mouth, chest and stomach will participate in playing the harmonica and get exercise. Abdominal breathing can also promote gastrointestinal peristalsis. 4. Stop Alzheimer's disease. When playing the harmonica, you must devote yourself wholeheartedly. Not only does your body participate in sports, but your brain should also think about melody. Therefore, it has a good auxiliary function in preventing Alzheimer's disease.