Chen Lan, director of psychiatric department of Tianjin Beijing-Tianjin Hospital, is an old Chinese doctor who is good at treating insomnia and depression. He came from Shanghai and the effect was quite good. My wife's insomnia is there. She tried western medicine before, which was dependent and had serious side effects. She also tried the musical instrument. It's fine after using it for two or three times, or it's broken or invalid. Chinese medicine is still good, treating both the symptoms and the root causes.