We use the words well-being and the phrase health and well-being to mean the physical, mental and emotional state in which you are best able to express yourself and your unique talents and abilities in order to accomplish your personal goals.
Premature structural aging limits both the quantity and quality of life. It distracts your attention, and takes time and energy away from accomplishing your goals. It takes the fun, and often much of the meaning, out of life.
Source: Donkin, S., & Meyer, G. (2002). Peak Performance: Body & Mind. North Bergen, NJ: Basic Health Publications, Inc.