According to Oxford University research, Covid-19 can cause the brain to shrink, diminish grey matter in areas that govern emotion and memory, and impair areas that control the sense of smell.

The effects were found in persons who had not been hospitalized with Covid, according to the researchers, who added that more research was needed to discover if the effects might be partially reversed or if they would last in the long run.

“There is strong evidence for brain-related abnormalities in COVID-19,” the researchers said in their study, which was released on Monday.

Participants in the study exhibited “a decrease of executive function,” which is responsible for attention and organization, even in moderate cases, and their brain volumes reduced by 0.2 per cent to 2 per cent on average.

Covid-19 has been linked to memory loss and brain shrinking, according to a new research.

The peer-reviewed study, which was published in the Nature magazine, looked at brain alterations in 785 persons aged 51 to 81 who had their brains examined twice, with 401 of them catching Covid-19 between the two scans. On average, 141 days passed between the first and second scans.

The study was carried out when the Alpha type was the most common in Britain, and it is doubtful that anybody infected with the Delta version was included.

According to studies, some persons with Covid-19 reported “brain fog” or mental cloudiness, which affected their attention, focus, speed of information processing, and memory.

The researchers did not specify whether vaccination against Covid-19 had any effect on the disease, but a study of 15 studies published last month by the UK Health Security Agency revealed that vaccinated persons were around half as likely as unvaccinated people to develop signs of extended Covid-19.

(Adapted from Reuters.com)

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