[Seasonal incidence of alcoholic psychoses]

Analysis of the incidence of alcoholic psychoses in Moscow in 1982-1993 revealed a considerable increase of their number during the period from March till July-August and a decrease by October-November. It was found that such increase resulted from low-concentration atmospheric oxygen in spring-summer period. Hypoxia as a factor provoking alcoholic psychosis is responsible for 10-12% of the cases. The highest sensitivity to hypoxia occurred in the last days of the abuse.