Seems fairly rare to hear of someone having a knee, etc that bothers them for years provided it’s been properly treated. But hear about “bad backs” that people fight for decades.
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I see a whole lotta ELIHave a college degree up in here…. Here’s the explanation for an actual 5 year old, you know how dinosaurs are big? Think of a stegosaurus, it has a back shaped like an arch bridge, because bridges are strong and it has to hold up all the weight of his muscles and his guts underneath it. That part, underneath, is important. So that’s why our backs are curved, it holds things well when you are always positioned horizontally. But what if you started walking upright, vertically? Evolution tried to curve our backs once again in the other direction to maintain balance, which made a S curve which actually kinda sucks for support, that’s why you never see S shaped buildings (which must support their weight vertically) and that’s why it hurts.
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