On Feeding, Fasting, Rest, Relaxation, and Sleep is a book written by Herbert M. Shelton that explores the importance of these five essential elements for a healthy lifestyle. The book is divided into five sections, each focusing on one of the elements and discussing its benefits and drawbacks. The first section of the book deals with feeding, emphasizing the importance of a healthy diet and the negative effects of overeating. The second section discusses fasting, explaining the benefits of periodic fasting and how it can help the body heal itself. The third section is about rest, explaining how rest is essential for the body to recover from physical and mental exhaustion. The fourth section focuses on relaxation, discussing various relaxation techniques that can help reduce stress and promote mental and physical well-being. The final section of the book is about sleep, emphasizing the importance of getting enough sleep for overall health and well-being. Throughout the book, Shelton pr