About the book: 1965 / October 7, 1892 Max Pettenkofer drank a culture of vibrio cholerae to prove his theoretical positions; to develop new diagnostic techniques, Forsman inserted a catheter into the cavity of his heart through a vein; By offering a new medicine, the scientist himself demonstrates its healing properties and harmlessness to the body - the author talks about these and many other feats of doctors. The last chapter is devoted to space medicine; what experiments scientists perform on themselves, filling the pages of the golden book of the exploits of doctors in the name of humanity {1}.