Blood clots and stroke are common and serious problems. They costs Americans 39.5 billion dollars a year to treat blood clots and the serious conditions that result when they break off from the wall of the vessel. The worst of these conditions, of course, is stroke. And more important than the cost of this problem, someone dies of a blood clot or stroke every 5 minutes. And to think that much of this cost and loss of life could be prevented by maintaining a healthy glycoclyx.