Again. the kidneys. and especially the adrenal glands. influence the hair. 

Kelly`s body also showed weaknesses in pancreatic and adrenal function as well as a toxic colon. 

Perhaps the problem he had been having was not because the cats were without adrenal glands but because they were without sustenance. suffering a sort of slow starvation in the midst of plenty. 

The knee for example. has nerve pathway connections to the adrenal glands and kidneys. 

We have already seen how quickly emotion affects all secretions and how easily the adrenal and thyroid glands are influenced by fear.