Dr. Arthur Agatston discusses aggressive prevention that he believes stops heart attacks and strokes. He also discusses why people with normal cholesterol numbers might actually be at extremely high-risk levels for heart attacks and strokes.Dr. Agatston is the inventor of the famous South Beach Diet and national bestselling author. The South Beach Diet became a runaway success spending three years on the New York Times bestseller list. More than 21 million copies of its books are in print worldwide.