Can mild Covid affect the brain ?

Yes, according to an Oxford study.

The team investigated brain changes in 785 UK Biobank participants (aged 51–81).

The team compared Brain scans before COVID infection and Brain scans after infection.

They found that people with COVID subsequently had “brain shrinkage” and reduced “brain function” particularly relating to parts of brain dealing with emotions smell and long-term memory

It is not known whether these brain changes are temporary and reversible after a while or whether these changes are permanent.


Original paper in Nature for COVID brain. Douaud, G., Lee, S., Alfaro-Almagro, F. et al. SARS-CoV-2 is associated with changes in brain structure in UK Biobank. Nature (2022).

Daily Telegraph. Covid may cause the brain to degenerate three times faster than normal
Study finds ‘significantly greater cognitive decline’ among people who have been infected with coronavirus

By Sarah Knapton, SCIENCE EDITOR
7 March 2022 • 4:46pm

BBC. Scans reveal how Covid may change the brain By Rebecca Morelle
Science Editor, BBC News

Bloomberg. Covid Can Shrink the Brain as Much as a Decade of Aging, Study Finds. By +Follow7 March 2022, 16:00 GMT

Daily Mail. ‘Covid brain’ IS real: Illness can cause regions of the brain to SHRINK and lead to cognitive decline, new study finds. By Bhvishya Patel For Mailonline
02:16, 08 Mar 2022 , updated 07:18, 08 Mar 2022

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