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Why Parking Your Car Is Such a Pain & How Invisible Microbes Shape Your World

Something You Should Know

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The Old Fence Hypothesis

Professor Gray Mook likens the human immune system at birth to a computer. He suggests that we've co-evolved with these microorganisms, these specific microbes over hundreds of thousands of years. And it's important that we expose these old friends in order for them to regulate what's called our innate immune system. We're able to build up this large repertoire of what's called tiny immune cells. These are memory cells and allow us to mount a much more efficient immune response to pathogens in the future.

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