Doctors are still trying to understand brain fog, which some studies estimate may affect up to 70% of COVID patients, and experimenting with treatments that may improve symptoms for those dealing with it months out from their illness. Studies show those who have had COVID demonstrate measurable increases in brain fog compared to their counterparts—even if they didn’t notice it—but also that those symptoms cleared up around six to nine months later.
“Sometimes people complain about processing speeds or being more forgetful, trouble with focus and attention and concentration—these are kind of the hallmark symptoms,” says Dr. Erik Won, president and chief medical officer at Wave Neuroscience in Newport Beach, California.