The Human Body: How We Fail, How We Heal

Your body is a fortress under constant assault. Infectious diseases, parasites, environmental toxins, physical trauma, allergens, and natural disasters are some external enemies it faces. From the inside, it is threatened by occasional overzealous allergic, immune, and inflammatory responses, as well as by the cellular mutations that produce cancer. Fortunately, the body's defenses are remarkably successful, and most of the time we are unaware of the intense drama taking place within our cells and organs. The intriguing details of this drama make up the field of pathophysiology—the study of the disruptions in a normal body's functions that are caused by disease or injury. Medical students get an exhaustive introduction to this subject early in their training, and the best clinicians are masters of it. Yet few laypeople understand the story of how our bodies fail and the marvelous ways they heal themselves.

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