Dr. Bill Hettler: He is often credited with creating the first widely adopted version of the Wellness Wheel in the late 1970s. He, along with the National Wellness Institute, an organization dedicated to promoting wellness in all aspects of life, developed a model focusing on six key areas of wellness: physical, social, intellectual, spiritual, emotional, and occupational. His goal was to emphasize that true wellness involves finding balance across all life areas and viewing wellness as a continuous journey, not a static destination.