As vacationers go on hiking trips, swim, sunbathe, fish, pick mushrooms and ski in various resorts across the Soviet Union, scientist Evgeni Chazov discusses the importance of active recreation in the prevention of diseases and fatigue.
2017
—
2020
2024
2012
2001
2022
2004
1940
1945
1966
2021
2023
1967
1995
