Have you ever heard the phrase, “Too much of a good thing”? Most of the time, it’s said in reference to benign things like pizza, ice cream, or Netflix crime documentaries.
But when it comes to the brain, too much of a good thing can be life-altering. Our brains all have ridges or folds – called gyri – that help increase the surface area of the cerebral cortex and form brain divisions. When the brain has too many folds, and the folds are unusually small, it creates a condition called polymicrogyria. The name literally means too many (poly-) small (micro-) folds (-gyria) in the surface of the brain.