Part I: University of Virginia biomedical engineer Paul Allaire discusses his development of magnetic bearings for use in heart pumps. The bearings improve blood flow and eliminate the need for mechanical lubricants that can contaminate the blood.
Part II: Dr. William Regelson professor of medicine at Virginia Commonwealth University and author of The Melatonin Miracle, describes his groundbreaking research on this natural hormone, which helps you to live and love longer and better.
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