Part I. The circadian clock -- We are all shift workers -- How circadian rhythms work: timing is everything -- Track and test: is your circadian code in sync? -- Part II. The circadian lifestyle -- A circadian code for the best night's sleep -- Time-restricted eating: set your clock for weight loss -- Optimizing learning and working -- Syncing your exercise to your circadian code -- Adapting to the ultimate disruptors: lights and screens -- Part III. Optimizing circadian health -- The clock, the microbiome, and digestive concerns -- The circadian code for addressing metabolic syndrome: obesity, diabetes, and heart disease -- Enhancing the immune system and treating cancer -- The circadian code for optimizing brain health -- A perfect circadian day

A comprehensive health book and lifestyle plan to help manage the body's natural rhythms offers advice to overcome difficulty sleeping, hunger at odd times, and sudden fatigue