Nikolai Ivanovich Arinchin (28.02.1914, Zemlyansk, Voronezh region, Russia – 06.11.1999), physiologist. Corresponding Member of the National Academy of Sciences of Belarus (1966), Doctor of Biological Sciences (1955), Professor (1960). Member of the Great Patriotic War.
Works in the field of physiology and pathology of blood circulation, comparative and evolutionary gerontology. Developed research methods and created new devices for a comprehensive study of the cardiovascular system. His works in the field of physiology and pathology of blood circulation, comparative and evolutionary gerontology and muscle activity contain new data on the three-phase structure of the cardiac cycle and the interpretation of the electrocardiogram, the classification of the cardiovascular system according to the types of self-regulation of the blood circulation and the pathogenetic forms of hyper- and hypotension, tempocyclic hypothesis of life activity, aging and longevity, the vibrational hypothesis, with the help of which the discovery "Micropump property of skeletal muscles - peripheral "hearts" of man and animals", hemodynamic scheme, justification of 23 new scientific terms that are included in the "Dictionary of physiological terms" (М., 1987).
Author of more than 320 scientific papers, incl. 11 monographs, 5 inventor certificates and 1 patent.
Awarded with the Order of the Labor Red Banner (1962), World War of the I degree (1985), two Orders of the Patriotic War of the II degree (1945), the Red Star (1944), and medals.