More than 30 years ago, a young Harvard pathologist offered the medical community a theory for the cause of one of today's biggest killers-- heart disease. It is called the Homocysteine Theory and is the medical breakthrough that inspired Andrew Weil to label Dr. McCully as a visionary medical pioneer well ahead of his time. This discovery has the potential to save millions, yet ironically destroyed Dr. McCully's medical career. Homocysteine, a byproduct...