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Light drinking may protect brain function in older people

Light drinking may protect brain function in older people

New York, July 1 (SocialNews.XYZ) It seems like consuming alcohol in older age might not be as bad as we think because researchers have found that light to moderate drinking may preserve brain function in older adults.

The study, published in the journal JAMA Network Open, examined the link between alcohol consumption and changes in cognitive function over time among middle-aged and older adults in the US.


"We know there are some older people who believe that drinking a little wine every day could maintain a good cognitive condition," said lead author Ruiyuan Zhang from the University of Georgia in the US.

"We wanted to know if drinking a small amount of alcohol actually correlates with a good cognitive function, or is it just a kind of survivor bias," Zhang added.

Regular, moderate alcohol consumption has been shown to promote heart health and some research points to a similar protective benefit for brain health. However, many of these studies were not designed to isolate the effects of alcohol on cognition or did not measure effects over time.

For the current findings, the research team developed a way to track cognition performance over 10 years using participant data from the nationally representative Health and Retirement Study.

During the study, a total of 19,887 participants completed surveys every two years about their health and lifestyle, including questions on drinking habits. Light to moderate drinking is defined as fewer than eight drinks per week for women and 15 drinks or fewer per week among men. These participants also had their cognitive function measured in a series of tests looking at their overall mental status, word recall and vocabulary. Their test results were combined to form a total cognitive score.

The researchers looked at how participants performed on these cognitive tests over the course of the study and categorised their performance as high or low trajectories, meaning their cognitive function remained high over time or began to decline.Compared to nondrinkers, they found that those who had a drink or two a day tended to perform better on cognitive tests over time. Even when other important factors known to impact cognition such as age, smoking or education level were controlled for, they saw a pattern of light drinking associated with high cognitive trajectories.

"It is hard to say this effect is causal. So, if some people don't drink alcoholic beverages, this study does not encourage them to drink to prevent cognitive function decline," the study authors wrote.

Source: IANS

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Light drinking may protect brain function in older people

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