Emergency ambulance statistical data accumulated in Moscow during March 198
3 - October 1984 have been analyzed. Diurnal numbers of urgent hospitalizat
ion of patients in connection with suicides, mental disorders, myocardial i
nfarction, defeats of cerebrum vessels and arterial and venous diseases hav
e been examined. Intensity and duration of planetary geomagnetic storms wer
e used as magnetic activity indices. Comparison of geomagnetic and medical
data rows has shown that at least 75% of magnetic storms caused increase in
hospitalization of patients with the above - mentioned diseases on 30-80%
at average. The dependence of the value of biotropic effect on the duration
of effect and intensity of magnetic storm is observed.