From what has been said, it becomes clear why the meat-eater craves alcohol and xanthines. When by the taking of flesh foods the blood has become saturated with uric acid and the annoying symptoms of collaemia make their appearance in the forms of lassitude, headache and nervous depression, then alcohol and the xanthines contained in coffee, tea and tobacco will cause the precipitation of the acids from the circulation into the tissues of the body, and thus temporarily relieve the collaemic symptoms and create a feeling of well-being and stimulation. Gradually, however, the blood regains its alkalinity and its acid-dissolving power and enough of the acid deposits are reabsorbed by the circulation to cause a return of the symptoms of collaemia. Then arises a craving for more alcohol, coffee, tea, nicotine or xanthine-producing foods in order to again obtain temporary relief and stimulation, and so on, ad infinitum. The person addicted to the use of stimulants is never himself. His mental, moral and emotional equilibrium is always unbalanced. His brain is muddled with poisons and he lacks the self-control, the clear vision and steady hand necessary for the achievement of success in any line of endeavor. We can now understand why one stimulant craves another, why it is almost impossible to give up one stimulant without giving up all others as well. From the foregoing it will have become clear that the stimulating effect of alcohol and of many so-called tonics depends upon their power to clear the circulation temporarily of uric and other acids. Those who have read this chapter carefully, will know why this effect is deceptive and temporary and why it is followed by a return of the collaemic symptoms in aggravated form, and how these are gradually changed into chronic arthritic uric acid diseases. In order to give a better idea of the various phases of uric acid poisoning, I have used the following illustration in some of my lectures: A man may carry a burden of fifty pounds on his shoulders without difficulty or serious discomfort. Let this correspond to the normal solving-power and carrying-capacity of the blood for uric acid. Suppose you add gradually to the burden on the man's back until its weight has reached one-hundred and fifty pounds. He may still be able to carry the burden, but as the weight increases he will begin to show signs of distress. This increase of weight and the attendant discomfort correspond to the increase of uric acid in the blood and the accompanying symptoms of collaemia. If you increase the burden on the man's shoulders still further, beyond his individual carrying-capacity, a point will be reached when he can no longer support its weight and will throw it off entirely. This climax corresponds to the saturation point of the blood, when the limit of its acid-carrying capacity is exceeded and its acid contents are precipitated into the tissues. The Treatment of Acid Diseases