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06/07/2017
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Research reveals that over time substance interferes in cognitive functions
FOR THE GLOBE 07/06/2017 8:00 / updated 07/06/2017 8:44
Many people have used the "social drinking" trumpet to rule out any suggestion that alcohol could harm their health. However, a study from the University of Oxford has revealed that even moderate amounts of alcohol can damage the brain.
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According to researchers, drinking alcohol can impair cognitive functions of the brain over time, which brings down the idea that small amounts of the substance would help protect the brain.
To reach these conclusions, the scientists followed 550 people from 1985 and eventually performed magnetic resonance imaging in these patients to identify possible problems in the brain. About 23 patients were excluded from the study after inconsistencies in some data. In the tests, the scientists looked at the white matter of the patients' brains and the hippocampus (part of the brain associated with memory).
Among those who drank 30 or more units of alcohol, 77% had shrinkage of the hippocampus. The rate was 65% among those who drank a moderate amount of the substance, between 14 and 21 units per week, which is equivalent to six brass of beer of 473 ml each, or seven glasses of wine of 175 ml. Among non-drinkers, the percentage was 35%.
In addition to reducing the hippocampus, scientists have identified changes in the structure of the white matter in the brain. A practical reflection of alcohol consumption was seen in the lexical fluency of the study participants. According to the researchers, those who consumed moderate drink had a 14% reduction in their lexical fluency during the long 30 years of study, compared to those who practically did not drink.
- (lexical fluency) is when you ask someone to name as many words as possible in a minute starting with a certain letter - explained Anya Topiwala, a professor at Oxford University. - We knew that drinking too much for long periods of time was bad for brain health, but we did not know the impact (when drinking) at those levels.
Experts note, however, that although the study provides relevant evidence, further research is needed, since the Oxford analysis was only observational and it is not possible to predict that alcohol is the cause of changes in the brain.
Read more: https://lobo.globo.com/society/consumption-moderate-of-alcohol-you-can-learn-cerebro-21444579#ixzz4jKFIzwkY
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Source: The Globe
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This article was translated by an automatic translation system, and was therefore not reviewed by people.