Here's a transcription of a speech by Dr.Ron Rosedale on the effects of Insulin. It reads like a condensed version of GCBC:
What they are finding on these major centenarian studies is that there is hardly anything in common among them. They have high cholesterol and low cholesterol, some exercise and some don't, some smoke, some don't. Some are nasty as can be and some nice and calm and nice. Some are ornery, but they all low sugar, relatively for their age. They all have low triglycerides for their age.
And they all have relatively low insulin. Insulin is the common denominator in everything I've just talked about. They way to treat cardiovascular disease and the way I treated my stepfather, the way I treated the high risk cancer patient, and osteoporosis, high blood pressure, the way to treat virtually all the so-called chronic diseases of aging is to treat insulin itself.