A practical manual for maintaining health in later life offers concise rules for diet, exercise, and simple remedies, emphasizing prevention over cure. It explains how to judge personal health by appetite, digestion, and the morning pulse, and recommends regular self-monitoring. Chapters advise adjusting nourishment and activity with advancing years and the seasons, using warmth and moderation to prevent chill-related, urinary, and bowel troubles, and favoring lighter meats, fish, gentle motion, ease, and cheerfulness. Frequent sudden changes are discouraged; attention to evacuations, clothing, and temperate habits is presented as the best defense against common infirmities of age.