Gunnar Morken, MD

1803 SW 180th Terr




Seasonal Variation of Violence

April 01, 2001

The author examines how temperature and length of day can affect mood and behavior, both in a general population and a group of inpatients. In both groups, there were two peaks of violent behavior, one in May-June and one in October-November, which correspond with the equinoxes. Is it possible to track violent behavior in various geographical areas depending upon weather and length of day?