As an undergraduate, Dr. Brent Ridge majored in public health and environmental science, studying the way the state of the natural environment impacts our health choices. He graduated from the University of North Carolina School of Medicine, completed his post-graduate training at Columbia University, and also holds an MBA from New York University. As a physician, he specializes in the field of aging and is currently working with Martha to develop the Martha Stewart Center for Living at Mount Sinai, a new facility for the management of chronic health conditions and for the promotion of healthy aging. According to Dr. Ridge, "aging" is not about a number or a year, but rather "learning ways to maximize your health so that whether you are 30, 50, or 80, you are getting the most out of your life and doing the things you love to do." Dr. Ridge also serves the vice president for healthy living for Martha Stewart Living Omnimedia. You can talk to Dr. Ridge live every week on "Ask Dr. Brent" on Martha Stewart Living Radio.