Researchers are embarking on a new study to answer how some people are able to stay sharper than others as they age.
Look closely at the brain scans below, and one of the first things you notice is how the ventricles – the dark, butterfly shapes in the middle of the brain — are much larger in the image labeled “old” than in the image labeled “young.” (The scans are from a 38-year-old and a 73-year-old.) You can see more darkness between the folds of the older brain and in the spaces between the brain and the skull.
Learning Sciences 