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Body Snatchers: Go inside the bodies of two women whose natural systems each must deal with foreign organisms trying to control its host: a flu virus and a growing fetus. The body's reaction to and changes from each "invader" are truly remarkable. Breaking Down: An 11-year-old girl with a broken arm and an 87-year-old man vividly illustrate the differences in the way a young body heals itself and the way an old one struggles. See how the body repairs itself after an injury and how these very repairs lead to our eventual demise. |