About the Author
Maryann Karinch (Estes Park, CO) is the author of twelve books. She has competed successfully in multiple sports, including gymnastics, bodybuilding, and endurance racing, and holds a current certification in personal training from the American Council on Exercise.
Charles R. Cantor, MD, DABSM (Philadelphia, PA), is a neurologist specializing in sleep disorders. He is the medical director at the Penn Sleep Centers.