Dr. Lewis is a graduate of the U.S. Military Academy at West Point and Tulane University School of Medicine and is an expert in the area of Men's health. Dr. Lewis is board-certified and a Fellow of the American College of Preventive Medicine and American College of Nutrition. He completed post-graduate training at Walter Reed Army Medical Center, Johns Hopkins University, and Walter Reed Army Institute of Research. He has a special interest in brain health and in 2012 founded the nonprofit Brain Health Education and Research Institute. Dr. Lewis is also the author of, When Brains Collide: What every athlete and parent should know about the prevention and treatment of concussions and head injuries.