when everything works right, the hdl takes ldl and brings it back to the liver.lesterol from your food. the cholesterol is a good measure of what is in the blood. it doesn't tell you if it is forming plaque. it is the plaque that causes heart attackattacks. >> if you look at the coronary care unit, those who have it and those on the street are essentially the same. >> you hear people exchange the numbers. if it is low, they are proud of it. if it is high, there is cause for concern. you are not looking in the right place. >> that is useless essentially. >> here is what does matter. the size of your ldl, or bad cholesterol. larger ldl don't pose a threat because they pass through the blood vessels without sticking. it is the smaller ldl that are more likely to lodge in the blood vessels and cause the build up of plaque. >> there are old ladies with high cholesterol who have squeaky clean vessels. they have large particles and they don't get into the vessel wall. >> i did find out about my cholesterol and plaque and levels. my doctors say i'm heart attack proof for

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