Moderate drinking reduces risks of Alzheimer’s

Korean scientists have found that moderate drinking is associated with reduced risk of Alzheimer's, as it reduces the concentration of beta-amyloid proteins associated with the development of the disease. An article about this has been published in PLOS MEDICINE.

The study was attended by 414 people, whose average age was 71 years. None of the participants were diagnosed with dementia or alcohol abuse. 

Volunteers underwent MRI and PET of the brain, and answered questions about how often and in what quantities they had taken alcohol during their lifetime.

It turned out that those participants who drank moderately had 66% less beta-amyloid deposits than those who did not drink at all. These results were found in those who drank moderately throughout their lives, rather than those who had only recently begun drinking. Also, positive effects were not found in participants who drank above moderate levels of alcohol.

Moderate drinking was defined as 1-13 servings of alcohol per week, where one standard serving of 10 milliliters of pure alcohol was required. This was about 360 milliliters of beer, or 150 milliliters of wine, or 15 milliliters of spirits.

The authors of the study note that the results show only a correlation and not a causal relationship, that is, it cannot be stated explicitly that alcohol reduces the risk of Alzheimer's disease. However, they believe that moderate consumption of alcohol seems to be beneficial for people who do not have dementia and alcohol addiction, if we consider the impact on the brain separately.

March 10, 2020, 10:12 a.m.

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