Evgeny Ivanovich Chazov for twenty years (from 1967 to 1986) headed the 4th Main Directorate under the USSR Ministry of Health, which served the top leaders of the Soviet Union. It was at this time that the so-called "dance of death" took place, when three General Secretaries of the Central Committee of the CPSU (Brezhnev, Andropov, Chernenko) died one after another.E. I. Chazov, on duty, was obliged to know everything about the state of health and the causes of death of his wards | in his book, he tells how the Soviet leaders passed away, gives details of their last days. A special place is given to the death of L. I. Brezhnev, about which there are many rumors to this day.