It is not a coincidence that you start losing muscle at 30 and that’s were most people start to complain about body aches.
This study also gives credence to it and there’s many more that also confirm it:
https://pmc.ncbi.nlm.nih.gov/articles/PMC6124840
Another aspect is inflammation and I hate to bring it up because it’s such a nebulous concept peddled by online granola mom anti vax types that don’t have a single clue about nutrition. But it is a fact that the shitty diets prevalent in our society cause inflammation in the body, which also contributes to skeletomuscular pain. The worst thing is that people consider it normal when it really isn’t. You’re supposed to be pretty spry up until your 60s or 70s.
I was gonna add a disclosure making an exception for people doing hard physical labor but got lazy. But an office worker which I would assume is most of the lemmy population should not have those issues