Although serum cholesterol has for several decades been linked to atherosclerosis & coronary heart disease, cardiovascular primary prevention studies that have resulted in low or lowered cholesterol have not reduced total mortality. This finding may be due in part to an increase in mortality from suicides, homicides, & accidents among people with low or lowered serum cholesterol. This article attempts to review the literature on cholesterol & aggressive behaviour, examines possible links connecting the two, & suggests an ethnocultural perspective to these connections. (37 refs.)