Considering the fact that a female body can form a fully functioning body inside its womb in 9 months, shouldn’t it be much easier to, suppose, fix a leg injury? Why can it not do the same to repair itself?
In: Biology
Healing and development are two very different processes. While you have instructions to make every single part of your body, actually using them outside the context to regenerate missing pieces isn’t straight forward.
I have a lot I could say to this end (I study biology and related science topics, woo!), but to keep this ELI5 and not super wordy, I could describe it (loosely) as the difference between assembling a car from an instruction manual and a set of brand new parts, and trying to partially disassemble and repair a car while it’s still driving down the road and you can’t stop. You often try for (or are only able to use) patches and ‘compensations’ for missing pieces rather than rebuilding something entirely to be factory-made quality.
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