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CORONAVIRUS

Coronavirus could age the brain by 10 years or cause IQ to fall

The worst-affected patients were those treated in intensive care but those cared for at home also suffered some cognitive decline
The worst-affected patients were those treated in intensive care but those cared for at home also suffered some cognitive decline
NEIL HALL/EPA/BLOOMBERG/GETTY

Coronavirus survivors may be at risk of lasting cognitive damage, according to a study that found that in the worst cases the infection can cause mental decline equivalent to an 8.5-point fall in IQ or the brain ageing ten years.

The “brain fog” reported by many people weeks and months after their recovering from the virus may be a symptom of more serious cognitive deficits, scientists have said.

Research involving 84,285 people who had recovered from confirmed or suspected Covid-19 found that damage to the brain had happened to varying extents, depending upon the severity of the infection. However, more work is needed to identify how long this lasts.

Covid-19 cognitive deficit test: can you answer the following sample questions?

The worst-affected patients, those who