This classic book is considered Ehret's health masterpiece. He explains how to successfully conduct and complete a fast in order to gain maximum strength and energy for joyful living. Also included are essays based on Ehret's teachings by Fred Hirsch and long-time devotee Teresa Mitchell. Section I * Ehret s theories on the fundamental causes of disease *Complete instructions for fasting and living in harmony with nature * Health and Happiness Through Fasting Fred Hirsch Section II * Your Road to Regeneration Building Bodily Strength and Efficiency * My Road To Health Teresa Mitchell * Internal Cleanliness Fred Hirsch Section III * Ehret s Treatise on the Definite Cure of Chronic Constipation * Overcoming Constipation Naturally Arnold Ehret was a man of unique insight, with a prophetic understanding of how to cleanse and rebuild the body.