…according to a study out of Finland. Researchers looked at mid-life alcohol consumption and dementia signs and symptoms 20 years later. I quote from DementiaToday.com:
The study, conducted at the University of Turku, University of Helsinki and National Institute for Health and Welfare in Finland based on subjects from the Finnish Twin Cohort, shows that midlife alcohol consumption is related to the risk of dementia assessed some 20 years later. The study indicates that both abstainers and subjects consuming large amounts of alcohol have a greater risk for cognitive impairment than light drinkers.
Judicious alcohol consumption, primarily wine, is a component of the traditional Mediterranean diet that is probably protective of dementia.
Advanced Mediterranean Diet 