COVID-19 could age the brain by 10 years: Study
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People recovering from COVID-19 may suffer significant brain function impacts, with the worst cases of the infection linked to mental decline equivalent to the brain ageing by 10 years, researchers warned.

Cognitive tests measure how well the brain performs tasks –- such as remembering words or joining dots on a puzzle. Such tests are widely used to assess brain performance in diseases like Alzheimer's, and can also help doctors assess temporary brain impairments.

Team analysed results from 84,285 people who completed a study called the Great British Intelligence Test.

Cognitive deficits were "of substantial effect size", particularly among people who had been hospitalised with COVID-19, with the worst cases showing impacts "equivalent to the average 10-year decline in global performance between the ages of 20 to 70".

Scientists not directly involved with the study, however, said its results should be viewed with some caution.

"The cognitive function of the participants was not known pre-COVID, and the results also do not reflect long-term recovery - so any effects on cognition may be short term," said Joanna Wardlaw, a professor of applied neuroimaging at Edinburgh University.

Source: https://www.firstpost.com/world/covids-cognitive-costs-some-patients-brains-may-age-10-years-8958541.html
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