In a recent study from Halifax, NS, Canada, older persons who were taking lipid-lowering medication (i.e., statins) were found to have a lower incidence of dementia, even with factoring in variables responsible for a healthy lifestyle. Of 2,305 Canadians over the age of 65 involved in the Canadian
Reference
Rockwood, K., Kirkland, S., Hogan, D.B., MacKnight, C., Merry, H., Verreault, R., et al. (2002). Use of lipid-lowering agents, indication bias, and the risk of dementia in community-dwelling elderly people. Archives of Neurology. 59, 223-227.