The cause of many diseases, as proved by K.P. Buteyko, lies in deep breathing. By learning to breathe correctly, a person can get rid of various diseases and ailments or even prevent them. The author of the book, having studied extensive theoretical material and experienced the healing effect of the method on himself, wants to help many people recover without drugs. The method of preparation for the transition to shallow breathing is given, the indications and contraindications of the method are listed. Recommendations for a balanced diet are given to increase the effectiveness of the method.