AND PERSONALITY 



Thus, in man the 62,000 miles of capillaries receive 

 positive electric stimulation not only from the great execu- 

 tive brain but also from the abdominal brain, namely, the 

 adrenal medulla, the celiac ganglia and plexuses. When the 

 thinking brain is asleep or under anesthesia, the abdominal 

 brain continues to control the vascular system. 



We can now glimpse the homologue of the nucleus of the 

 amoeba in the vast nervous system of the higher animals. 

 Equally can we glimpse the homologue of the cytoplasm of 

 the amoeba in the muscles, glands, and blood of the higher 

 animals. Kofoid has illustrated this in the appearance of 

 elements akin to a nervous system in a unicellular diplo- 

 dinium. Thus the dominating positive nucleus of the uni- 

 cellular was evolved to see, to hear, to touch, and to smell 

 in the higher animals, that is, the forces that give the posi- 

 tive charge to the nucleus of the unicellulars also determined 

 a similar positive charge in the eye, the ear, the touch 

 corpuscle, and the nose of the higher animals. 



From these simple principles we see that the thyroid 

 gland, whose hormone, acting as a catalyst, increases the 

 rate of oxidation in the billions of brain cells and in the 

 cells of the sympathetic system, produces electric charges 

 only, hence influences the activity of the brain in training 

 and education and in maintaining the warm-blooded state. 

 The increase in the rate of oxidation in the brain cells and in 

 the cells of the sympathetic system alone would not affect 

 the body temperature; but the increased potential of the 

 brain, controlled by the thyroid hormone, provides the 

 constant electric stimulation of the vast mass of muscles 

 and thus maintains the warm-blooded state against cold. 

 This constitutes the first great oxidation or metabolic arc 

 in man and animals. 



Just as the nucleus of the ancestral amoeba was the 

 universal executive, so the brain in the higher animals is the 

 universal executive. In addition to a constant executive 

 stimulation for temperature, for muscular work, and for 



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