According to a new study published this month, other people who have experienced severe cases of COVID-19 may enjoy an intellectual decline equivalent to brain aging for a decade.
UK researchers analyzed the knowledge of more than 84,000 participants who took the Great British Intelligence Test and were suspected or shown to have COVID-19.
The study, which has not yet been peer reviewed, found that other people who recovered from severe cases of the disease had “significant cognitive impairment” after controlling other points such as age, sex and pre-existing medical conditions.
Some deficits had “a substantial magnitude of effect,” the researchers found, among those who had been hospitalized and those with mild episodes and did not report shortness of breath. to the average 10-year decline in overall functionality between 20 and 70 years. “
Cognitive impairment may be the result of other physical activity occasions that would be related to COVID-19, such as strokes, inflammatory syndrome, and microhemorrhhagia, according to the study.
COVID-19 is a disease that can have critical effects on the upper respiratory system, leading patients with severe cases to want additional oxygen. As a result, researchers also hypothesized that hypoxia in the brain can also lead to cognitive decline.
However, they write, “it remains to be noted that COVID-19 infection is related to cognitive decline at the population level; and if so, how this differs with the severity of respiratory symptoms and, therefore, the state of hospitalization. . “
In general, scientists stated that their findings “align with the view that there are chronic cognitive consequences of having COVID-19. People who recovered from suspicion or showed that COVID-19 performed worse on cognitive tests in various spaces than expected given their age and detailed demographic profiles.
Researchers said their examination would be a “clear call” for more studies based on cognitive deficits in patients with recovered COVID-19.
Some scientists say the effects of the test should be considered with caution.
Derek Hill, a professor of medical imaging science at University College London, told Reuters that the test did compare player scores before and after, and that many of them only reported having the virus without a positive test.
“Overall, [these are] intriguing but inconclusive studies on the effect of COVID on the brain,” Hill told Reuters. “As studies seek to better perceive the long-term effect on COVID, it will be vital to examine it in more detail the extent to which cognition is affected in the weeks and months after infection, and whether permanent brain damage serves as in some people.
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