Why are we still alive when our bodies are constantly under attack from bacteria, viruses, spores and more living stuff? As this video explains, it is because we have a coordinated army of cells fighting for our cause—and this is thanks to our immune systems. Without it you would die in no time. This sounds simple but the reality is complex, beautiful and just awesome.
This is an Awesome explanation of how your Immune system works and why you are still Alive
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