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.
2011
2008
1966
1975
2024
2023
2004
1958
2020
—
1927
1956
1949
1998
2006
1940