CHAPTER VIII 



HOW THE GLANDS INFLUENCE THE MIND 



It is impossible to review here in detail all the facts accumu- 

 lated concerning the influence of the internal secretions upon all 

 the processes of mind, intellectual and emotional. A volume 

 would not suffice for their adequate consideration. Reflexes, in- 



ts, habits, tendencies and emotions are involved in 

 machinery. The development and normal functioning of the 

 intellect, the pure reason as Kant called it, are controlled by 

 them. Brain, without them in solution, without enough of them 

 in that wonderful solution, the blood, sleeps or remains dormant 

 like the butterfly in the cocoon. The cretin, who has not enough 

 thyroid or no thyroid, is an imbecile because of his deficiency. 

 Supply him with thyroid from outside sources, feed him animal 

 thyroid, be it of the sheep, the pig, or the goat, and behold a 

 miracle! he is restored to the level of at least the relatively nor- 



intelli<:cnce. 

 Acuteness of perception, memory, logical thought, imagination, 



ption, emotional expression or inhibition and the entire con- 

 tent of consciousness are influenced by the ii. ions. 



most nit r bivities of the molecul 



!ls and nen dominated The 



speed of their chemistry and th sndthust 



Of tie Iodine I shown to in 



ity of the brain that 

 trons will fly through it. The thyroid may tin n 

 as ma' the amount of Iodine brought to | d the 



<< Us at a particular moo* 

 Adrenalin Kncrea* ductivity of the brain. N 



. 

 flow more <ini<klv through iod 



In dangerOUl situations we think more rapidly and keenly, for 



in | in* •/•'< the blood Hon. I th< brain with extra th\ roid and 

 adrenal mi r< -lions. 



m 



