This section is from the "Health and Survival in the 21st Century" book, by Ross Horne.
It was shown in the 1960s that diseased arteries can clean and heal themselves when the blood is cleansed of lipotoxemia, and everybody knows that thin gravy is easier to pour than thick gravy, which means of course that thin blood is easier to pump around the body than sticky blood. Thus the greatest benefit someone can bestow on their body is to get rid of toxemia and unstick their blood. Straightaway the blood's function is improved while at the same time areas deprived of circulation regain it--one of which may be the heart muscle itself--so that the workload on the heart is lessened, the blood pressure lowered, and all systems improve, including vitality and mental acuity.
It is important to understand that the lowering of blood viscosity is vital in cases of restricted circulation, because doing so removes the patient from immediate danger. Thus somebody with almost totally blocked coronary (or other) arteries can often proceed with normal activities, even strenuous exercise, without discomfort because of the natural bypass provided by collateral circulation around the blocked sections. Collateral circulation is provided by the growth of a great number of fine capillary vessels, which is the body's attempt to overcome the local problem, and is completely effective provided the blood is thin enough to flow through the fine vessels. But should the blood viscosity increase as the result of blood fats released into the blood by way of a fatty meal, sudden stress, or vigorous exercise, the collateral circulation suddenly can no longer function and a heart attack ensues. There are thousands of coronary bypass operations conducted every day on people who already have natural bypasses capable of doing the job providing they avoid the things that thicken up their blood. The invention of the coronary bypass was a brilliant technological achievement, a boon to surgeons and a boon (often temporary) to people who are incapable of foregoing the dietary pleasures that caused their problem in the first place. As a coronary bypass can itself block up in as short a time as a year or two, it is essential in order to ensure survival that proper dietary measures are adopted anyway. In preference to undergoing major surgery, a far better course of action in most cases would be to emulate Rolet de Castella of Melbourne and others like him. Rolet, himself a coronary bypass candidate after a stroke in 1974 and a heart attack in 1975, opted for do-it-yourself natural therapy, starting with a severe dietary change which quickly gave him the capacity to resume his sport of long distance running and to abandon all his medication. Since then he has completed over thirty marathon races, all traces of his circulatory problems having long since passed entirely.