Scientists have uncovered a possible explanation for one of COVID-19’s most vexing legacies: the stubborn neurological symptoms of long COVID, such as brain fog, memory loss and fatigue.
The first clue emerged when researchers scoured the blood of long COVID patients: It was serotonin – specifically, a lack of the neurotransmitter circulating in the body — that grabbed their attention.
Their analysis revealed that having low levels of that chemical predicted whether or not someone was suffering from persistent symptoms following an infection.
Read this story now for free
To continue reading, sign up for our newsletter and get unlimited access to WABE.org
You can select your preferences for news and local content. We will never share your email address. Learn how your newsletter sign-up will support WABE and Public Media
