While numerous prospective epidemiologic studies have provided evidence that light-to-moderate amounts of alcohol reduce the risk of dementia and heavy drinking increases the risk, there are few studies on the effects of alcohol on brain structure assessed by magnetic resonance imaging (MRI).
International Scientific Forum on Alcohol Research Critique 145: Alcohol Consumption and Brain Structure on MRI Scans
While numerous prospective epidemiologic studies have provided evidence that light-to-moderate amounts of alcohol reduce the risk of dementia and heavy drinking increases the risk, there are few studies on the effects of alcohol on brain structure assessed by magnetic resonance imaging (MRI).