Why does our immune system have a T-Cell for every Bacteria, Virus, Etc,
In: Biology
It needs some way to store “This is a bad thing, and this is how to kill it.” Without instructions, the immune system just does a bunch of random things all at the same time, causing side effects (which you call “being sick”). With a memory of what to do, the invader is vanquished and you never even know you were exposed to it.
Latest Answers