Dr. Charlie Seltzer is a medical doctor, board certified in both Obesity and Internal Medicine. He is also an American College of Sports Medicine Clinical Exercise Physiologist and has lost and kept off 70 pounds for over 10 years. His practice focuses on better health through nutrition, lifestyle and exercise modification. As an aside, Dr. Seltzer was one of the first registered certifying physicians in PA for medical cannabis. He explains why he thinks marijuana should be legalized recreationally everywhere, for what it is worth.