Covid can cause brain shrinkage, memory loss, Oxford study finds

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LONDON: Covid-19 can cause the brain to shrink, reduce grey matter in the regions that control emotion and memory, and damage areas that control the sense of smell, an Oxford University study has found.

The scientists said the effects were seen even in people who had not been hospitalised with Covid and whether the impact could be partially reversed or if they would persist in the long term needed further investigation. “There is strong evidence for brain-related abnormalities in Covid-19,” the researchers said in their study, which was released on Monday.

Even in mild cases, participants in the research showed “a worsening of executive function” responsible for focus and organising, and on an average brain sizes shrank between 0.2% and 2%.