eli5: If fever is our body’s response to kill an infection, then why do we take medicines like paracetamol that control the fever?

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Also, I get that the fever can get really high at some point, which causes other effects, but why is our body not able to control its response to the infection so as to not do more harm with the fever?

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Anonymous 0 Comments

Basically, our bodies evolved to fight off infection in a good-enough manner. But it isn’t a precision machine, it’s just ‘good enough’. And sometimes, it overreacts, harshly. Our brains gave us the ability to learn and understand and gain control over those mechanisms to help mitigate the overreaction of our natural systems. And we’re pretty good at it. Do a bit of research on how our immune system works- and then on how medication supplements it. It’s a fascinating subject- just don’t be surprised when you learn that our natural defense mechanisms suck horribly compared to our medical advancements, which, funnily enough, is the answer to your question.

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