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And, we would all be forced to live in sterile environments, never touching each other, never feeling a spring breeze, never tasting rain. The immune system is that complex operation within our bodies that keeps us healthy and disease-free. Few systems in nature are as complicated as the human immune system. It exists apart from, and works in concert with, every other system in the body. When it works, people stay healthy. When it malfunctions, due to our poor choices, terrible things happen. TUNE IN WEDNESDAY MAY 5, FOR THE REST OF THE STORY