While it’s widely accepted that drinking too much is bad for you, conventional wisdom — and the government’s dietary guidelines — says that alcohol can be consumed in moderation. The US government defines that as one drink a day for women and two for men.

This study, published in the BMJ on Tuesday, finds that drinking around these levels — 8 to 12 drinks a week — is associated with a few measures of cognitive decline that showed up on brain scans.

Source: Even a Moderate Amount of Drinking Could Cause Brain Decline – Scientific American