Says Academician of the USSR Academy of Sciences E. I. Chazov. E. A. Evstigneev driving a car. Research Institute for Preventive Cardiology. An electrocardiogram is taken from the patient. E. A Evstigneev's blood pressure is being measured. Programmers at work. There is a conversation between Evstigneev and a psychologist. Study picture on the display screen. The device for biochemical blood analysis is working.