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.
1993
2024
2009
2020
1945
1953
—
1954
2006
2016
2014
1985
1967
1940
2018
1946
2023
1966