"in turn implies an understanding of how physiology affects behavior" Sorry, but I think in some cases we can infer how physiology affects behavior. For exampl

"in turn implies an understanding of how physiology affects behavior" Sorry, but I think in some cases we can infer how physiology affects behavior. For example if you are big and strong, you can act differently than if you are weak and small. You don't need to get down to hormone level to see such things.