What Causes Long COVID Brain Fog?

Cognitive impairment affects over 80 percent of long COVID patients.

The study focuses on changes in AMPA receptors in the brain.

[¹¹C]K-2 PET imaging was used to assess receptor density.

30 Cog-LC patients and 80 healthy controls were enrolled.

Higher AMPA receptor density correlated with cognitive deficits.

Study suggests a potential for new diagnostic tools.

Findings may improve treatment options for cognitive long COVID.