Disease and Its Causes

This compact volume invites listeners to consider disease not merely as a medical problem but as a disturbance of the delicate balance between living organisms and their surroundings. Written over a century ago, the author frames disease in the language of cells, adaptation, and the ever‑shifting definition of what counts as “normal” for each individual. By treating the body as a collection of surfaces, fluids, and nerves, the work sets a stage for understanding how changes disrupt harmony. The tone is thoughtful rather than didactic, aiming at readers with a basic grasp of anatomy and physiology.

The main body examines infectious illnesses, using them as clear examples of how external agents upset the body’s equilibrium, while also offering a concise survey of organic conditions, especially heart disease. Brief discussions of heredity, insanity, and the influence of environment and social factors round out the picture. Though not a textbook for physicians, the narrative is engaging enough to spark curiosity about the underlying mechanisms that keep us healthy.