COVID-19 may reduce gray matter volume in brain, small study suggests

A study found that patients who required oxygen therapy for COVID-19 had lower gray matter volume in the frontal lobe of their brain compared with patients who did not require supplemental oxygen. Reduced gray matter in the frontal lobe also had links with more severe disability up to 6 months after recovery from COVID-19. Patients who experienced fever had lower gray matter volume in the temporal lobe compared with those who did not. However, the study was small, so scientists need to conduct more research to confirm the results.