For example, I cut my arm and I immediately feel pain. Pain is there to notify me that something is wrong or that I’m injured, but now that I’m aware and that I’ve taken care of it (say poured some disinfecant and wrapped it up) why do I still feel that pain. Why can’t our brain know that the wound is not dangerous anymore?
In: 2
Because you damage is still not healed. If it didn’t hurt then you’d go back to using it at normal strength and you could make it worse before it has the opportunity to heal.
Natural selection doesn’t care about your comfort as long as you survive long enough to make babies
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