Even mild covid-19 has been linked to shrinking in parts of the brain Design Cells/Getty Images
Do most of us have slightly diminished brainpower as a result of getting covid-19? That is the implication of the largest study on this so far, involving more than 100,000 people, but its findings raise more questions than they answer.
A team in the UK invited 800,000 people in the country to take part in research on the cognitive effects of covid-19. Of those, around 113,000 completed a series of online tests at some point between August…
