Female brains know how to fold ’em

Thanks to their inherently larger bodies, men typically possess larger brains than women do. Size isn’t everything, though. Women compensate for the smaller overall volume of their brains by squeezing more folds into some of the space than men do, a new brain-imaging study suggests.

Only women display a multitude of folds in the surface tissue of certain parts of the brain’s outer layer, or cortex, Arthur W.