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COVID can worsen work of a brain of all had. With cognitive violations like a sluggishness, "fog in the head" and problems concentration face not only those who hard transferred Koronavirus, but also even had bessimptomno. It showed recent research of the Russian scientists. As a rule, problems leave later half a year-year after an infection, is told in work. However, it is possible to get rid of unpleasant symptoms...