"Study Reveals Link Between Long Covid and Leaky Blood-Brain Barrier Causing Brain Fog"
A study suggests that "brain fog" experienced by some long Covid patients may be due to a leaky blood-brain barrier, which controls the passage of substances into and out of the brain. Researchers found higher levels of a brain protein in Covid patients with brain fog, indicating a breakdown of the blood-brain barrier. MRI scans also revealed signs of a leaky barrier in long Covid patients with brain fog. The study may have implications for understanding brain fog in other conditions, but further research is needed to confirm these findings.