Comment on Never understood this. If something foreign enters you your white blood cells go after it like a dog in heat, Would this not mean that our cells are smart enough to discern bad from good?

lath@piefed.social ⁨3⁩ ⁨days⁩ ago

They don’t go after everything foreign. They are produced with instructions by which they identify a threat. It’s their production source which provides the instructions and it’s not that smart or we wouldn’t have cases where the immune system attacks the body itself.

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