Although it’s well known that COVID affects the respiratory system, it’s perhaps less well known that the virus can also affect cognitive function.
Many people with COVID experience a phenomenon commonly called “brain fog”, which can include problems remembering, concentrating and performing daily tasks. Brain fog can also be a symptom of long COVID, where people suffer ongoing COVID symptoms for months, or even years, after infection.
In a recent study, we found that COVID negatively impacts working memory function, but only in adults aged 25 and over. Our results suggest that memory function can recover over time after a COVID infection, but people with ongoing symptoms may continue to have difficulty with their working memory.