In appearance, the human brain’s outermost layer, called the cortex, is a maze of tissue folds. The peaks or raised surfaces of these folds, called gyri, play an important role in the proper functioning of the brain.
New study suggests people who tested negative for Covid-19 can still develop long Covid
Of the 103 million confirmed cases of Covid-19 in the U.S., an estimated one-third have led to long Covid — a condition that ranges in
August 23, 2023