Tilden, Impaired Health: Its Cause and Cure, 1921._ The accelerated healing process that occurs during fasting can scarcely be believed by a person who has not fasted. No matter how gifted the writer, the experiential reality of fasting cannot be communicated. The great novelist Upton Sinclair wrote a book about fasting and it failed to convince the multitudes. But once a person has fasted long enough to be certain of what their own body can do to fix itself, they acquire a degree of independence little known today. Many of those experienced with fasting no longer dread being without health insurance and feel far less need for a doctor or of having a regular checkup. They know with certainty that if something degenerates in their body, their own body can fix it by itself. Like Upton Sinclair and many others who largely failed before me, I am going to try to convince you of the virtues of fasting by urging you to try fasting yourself. If you will but try you will be changed for the better for the rest of your life. If you do not try, you will never Know. To prompt your first step on this health-freedom road, I ask you to please carefully consider the importance of this fact: the body's routine energy budget includes a very large allocation for the daily digestion and assimilation of the food you eat. You may find my estimate surprising, but about one-third of a fairly sedentary person's entire energy consumption goes into food processing. Other uses for the body's energy include the creation or rebuilding of tissues, detoxification, moving (walking, running, etc.), talking, producing hormones, etc. Digestion is one aspect of the body's efforts that we can readily control, it is the key to having or losing health. The Effort Of Digestion Digestion is a huge, unappreciated task, unappreciated because few of us are aware of its happening in the same way we are aware of making efforts to use our voluntary muscles when working or exercising. Digestion begins in the mouth with thorough chewing. If you don't think chewing is effort, try making coleslaw in your own mouth. Chew up at least half a big head of cabbage and three big carrots that have not been shredded. Grind each bit until it liquefies and has been thoroughly mixed with saliva. I guarantee that if you even finish the chore your jaw will be tired and you will have lost all desire to eat anything else, especially if it requires chewing. Making the saliva you just used while chewing the cabbage is by itself, a huge and unappreciated chemical effort.