Studies dating back to 1977 with 365,000 participants in 19 countries were analyzed, and authors of the study found moderate drinkers were 23 percent less likely to develop Alzheimer’s and other cognitive complications in 14 of the 19 countries, including the United States. Heavy drinkers had a higher risk than non-drinkers, although the actual figure was not considered statistically significant.
Moderate drinking was considered one drink a day for women and two for men, and heavy drinking was defined as three to five or more drinks per day. One drink is defined as 5 oz. of wine, 12 oz. of beer or 1.5 oz. of spirits.
Researchers did not go into detail as to how or why drinking may lower the risk, although they indicated it may be linked to alcohol’s anti-inflammatory properties and that alcohol may improve blood flow in the brain.
However, according to experts, moderation is key to maintaining a healthy lifestyle. “Social drinking can be a very positive thing as long as it is not excessive and doesn’t exceed a drink per day for women or two drinks for men,” Christy Tangney, an associate professor of clinical nutrition at Rush University Medical Center in Chicago, told WebMD.
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