Is there a good of overall health, over and beyond particular goods of health, such as having keen eyesight, being able to run fast, etc.?
Suppose you have a broken leg and you believe this was your only health problem. But then you learn that your hearing is below normal and that this cannot be cured. Before you learned this bad news, you thought that fixing the fracture would both restore the health of the leg and overall health. But after learning the bad news, you knew that fixing the fracture would restore the health of the leg but not overall health. If overall health has a value over and beyond its components, then your level of motivation should go down, since previously actions that promoted the health of the leg apparently promoted two goods, while now you see that they promote only one. Yet surely your motivations wouldn’t decrease, or they hardly would. This suggests that the good of overall health is either not a further good or at best a minor good.