The way that humans moveis they have a very much milder aspect of brain aging. The same that part of aging happens in humans at a much slower rate. And in addition, we have diseases that are special to the human species, including al sdisease. There there's nothing equivalent in great apes or in the recess monkey to the devastation in the brain of alsheimers disease,. But theres major gaps that still remain to be filled before we have a definitive conclusion.