British study: Corona virus may cause brain shrinkage and deterioration of concentration

An Oxford University study concluded that the coronavirus can cause brain shrinkage, reduce gray matter in areas that control emotion and memory, and damage parts that control the sense of smell.

The scientists said that the effects were seen even in people who were not hospitalized with Covid-19 disease, and that further study is needed to determine whether the effect can be partially reversed and whether it is persistent in the long term.

"There is strong evidence of brain-related abnormalities in COVID-19 patients," the researchers said in their study.

Participants in the research reported a "deterioration in executive functions" responsible for concentration and organization, even in mild disease, with brain volumes shrinking on average between 0.2 percent and two percent.

The study, which was reviewed by researchers in the field and published in the journal Nature, examined changes in the brain of 785 participants aged 51 to 81 who had their brain scans scanned twice, including 401 who contracted COVID-19 between the two scans.

The second survey was conducted after an average of 141 days from the first.

The study was conducted when the alpha mutation of the Corona virus was prevalent in Britain and is unlikely to include any infected with the Delta strain.

Studies have concluded that some people who have contracted Covid-19 suffer from “brain fog,” or mental fog, which includes poor attention, concentration, speed of information processing, and memory.

The researchers did not say whether vaccinations against the Corona virus had any effect on the matter, but Britain's Health Security Agency said last month that a review of 15 studies found that those who were vaccinated were almost half less likely to develop long-term symptoms of Covid-19 than those without. The two restaurants.

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