We have an ancient peasant saying: “The cow has milk on her tongue.” It’s not clear at first, so it’s memorable. And later it becomes an important economic rule. "Your health is at your fingertips." This is also not immediately perceived. And this truth is also thousands of years old. Her name is Do-Ying (etymolologically connected with Tao Yin). The Chinese have chosen such simple and safe keys for the most complex, fundamental processes in the human body that everyone can use them successfully. The authors not only know traditional Chinese medicine very well, but have been teaching and practicing it for over 15 years in our “civilized” Western world and, therefore, are well aware of those weaknesses and diseases that the ancient Chinese could not even suspect. Therefore, the book turned out to be competent and very easy to use.