Unraveling the Impact of Long COVID on the Brain

Scientists are beginning to understand how long COVID affects the brain and nervous system, leading to symptoms such as brain fog, fatigue, and pain that can persist for months or even years after infection. COVID appears to weaken the barrier between the body and brain, allowing immune cells or antibodies to cross into the brain and damage neurons. Studies on mice suggest that inflammation caused by the infection can lead to subtle but significant changes in the brain, including the elimination of connections between neurons. Researchers are exploring drugs that reduce inflammation as a potential treatment, while vaccination offers a way to reduce the risk of long COVID.