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Tuesday 27 October 2020
A coronavirus infection can have long-term consequences. According to a study, Covid-19 lung disease is said to have a drastic effect on brain function in the worst cases. There are, however, considerable doubts about causal relationships.
According to a study, Covid-19 can have a significant impact on brain function. The worst cases of infection can be associated with mental deterioration equivalent to ten years of aging of the brain. A study of over 84,000 people, led by Adam Hampshire, a physician at Imperial College London, found that coronavirus infection is associated with significant cognitive deficits for months in some severe cases.
“Our analyzes are consistent with the view that Covid-19 has chronic cognitive consequences,” the researchers wrote in a report on their findings. “People who recovered, including those who had no symptoms, showed significant cognitive deficits.”
Cognitive tests measure how well the brain is doing tasks, such as remembering words or putting points together on a puzzle. Such tests are often used to evaluate brain performance in diseases such as Alzheimer’s disease and can also help doctors evaluate transient brain disorders.
The Hampshire team analyzed the results of 84,285 people who completed a study called the Great British Intelligence Test. The Hampshire results have yet to be verified by other experts.
However, scientists who weren’t directly involved in the study said the results should be viewed with some caution. “The cognitive function of participants before Covid is unknown and the results do not reflect long-term recovery, so the effects on brain functioning could be short-term,” said Joanna Wardlaw, professor of neuroimaging at the University of Edinburgh.
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