During childhood the temperature gradually approximates that of the adult. Heat production and heat regulation, maintaining the same constant bodily temperature regardless of the surrounding degree of cold or heat below or above that of the body, has been and is, a problem to the medical profession. Inflammation and fever, pathological heat conditions, do not offer to the germ theorist any solution of this perplexed question. Poisons affect nerves, not blood. The following biological principles which go to make up chiropractic science should be known and made use of by practitioners.
Nerve fibers possess the property of conducting impulses outward and inward.
The amount of impulsive force is determined by the rate of transmission, the rate of that action upon the quantity of vibration and the amount of that movement upon tension. Physiological and pathological activity between peripheral end-organs and their central connection is dependent upon nerve tension. The specific energy of a nerve is due to its anatomical structure, its elasticity and tension. A nerve pressed upon by a fractured or luxated bone would be stretched were it not for the responsive principle of life which resists pressure. The impulsive force normally conveyed by the nerve is modified by the elastic resistance known as renitency.