According to Paul Harrison, FRCPsych, of the University of Oxford in England, and colleagues, health records of nearly 1.3 million people, mostly in the US, revealed that risks of cognitive deficit (brain fog), dementia, psychotic disorders, and epilepsy or seizures were elevated at 2 years for adults who had COVID. Adult COVID patients had an increased risk of anxiety and depression in the first six months, but this risk decreased over time, the researchers reported in Lancet Psychiatry.