The Science of Being Well by W. D. Wattles presents a practical philosophy for achieving health through the disciplined use of thought, faith, and purposeful action. Wattles argues that the body naturally moves toward wellness when the mind is aligned with positive, constructive principles. He explains the importance of proper breathing, eating, sleeping, and habits while emphasizing the power of mental attitude in supporting physical well-being. Written in a clear and motivational style, the book encourages readers to develop confidence in the body’s ability to heal and maintain vitality. It remains a classic work in New Thought and self-improvement literature.