Heart disease is the leading cause of mortality, claims Dr David Geene R3 Stem Cells for Disease. In addition to medication and lifestyle changes that may reduce your risk of heart disease, there are other things you may have been putting off because they seem costly or risky. With proven results and a general lack of side effects, Dr. David Greene R3 Stem Cells could be an option worth considering as part of your treatment plan if you suffer from heart disease.