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Cancer Researchers Discover What’s Driving “Brain Fog” in People with COVID-19


One of the dozens of unusual symptoms that have emerged in COVID-19 patients is a condition that’s informally called “COVID brain” or “brain fog.” It’s characterized by confusion, headaches, and loss of short-term memory. In severe cases, it can lead to psychosis and even seizures. It usually emerges weeks after someone first becomes sick with COVID-19.

In the February 8, 2021, issue of the journal Cancer Cell, a multidisciplinary team from Memorial Sloan Kettering reports an underlying cause of COVID brain: the presence of inflammatory molecules in the liquid surrounding the brain and spinal cord (called ...