Brain and Neurological System
Brain mass reduction, which is suspected to be the result of inflammation, has been reported by British researchers. This physical change represents a more significant reduction in gray matter thickness and global brain size with more significant changes in markers of tissue damage in regions connected to the primary olfactory cortex.
Other undesirable outcomes of COVID-19 infections can include an increased risk of developing Parkinson’s and Alzheimer’s disease. In addition, even younger patients can experience strokes, seizures, and Guillain-Barre syndrome, which causes temporary paralysis.
Some individuals develop mid- to long-term symptoms following COVID-19 infection, including brain fog, fatigue, headaches, and dizziness. The cause of these symptoms is unclear at the moment.
However, there is emerging evidence of ACE2 receptors in human brains, indicating the potential brain infection by SARS-CoV-2. Neuroinvasion by SARS-CoV-2 can occur with various possible routes, such as transsynaptic transfer across infected neurons via the olfactory nerve, vascular endothelial cell infection, or migration of leukocytes across the blood-brain barrier.10
