Literature Review from the year 2020 in the subject Medicine - Other, University of Tabuk (Medical College, University of Tabuk, Saudi Arabia), language: English, abstract: The current books highlights the importance of diet and exercise on diabetes mellitus, it also touched the effects of morningness-evenenigness on the development and glycemic control of diabetes. In addition, the book discussed the concept of chrononutrition (meal timing, contents, and composition), its impacts on diabetes, body weight, and psychiatric disorders including depression. A broader insight towards meal and exercise timing, relationship between daylight, psychiatric disorders, body weight, and diabetes. The book included a section regarding diabetes prevention programs.