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Why You Are Still Alive - The Immune System Explained

Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival. Without it you would die in no time. This sounds simple but the reality is
Every second of your life you are under attack, but your immune system fights back.
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Kurzgesagt
Uploaded 07/01/2014
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