Cure For Lower Back Pain.net

Humans are the only beings (excluding the Sasquatch) to walk erect. Observing that this is a relatively late evolutionary development would it be plausible that our skeletal structures are still in the process of evolving to support an erect body instead of being quadrupedal? Could it be the fact that we as humans only in the last 10,000 years have lived more laborious lifestyles that cause these injuries? These questions raise the question of whether is it natural selection or unnatural circumstance that causes lower back problems to be prominent in humans.
Edit:
Birds fly as well as walk except for what turkeys, chickens, and what was the Dodo before it became extinct etc. I’ve never asked a dinosaur if their back hurt, but I don’t think that birds or dinosaurs work at FedEx throwing boxes around all day. I think it is fair to say that incorrect lifting is an implied and integral part of living in not only an industrial society, but also in cultures where the procurement of surplus requires more physical labor than is necessary. Many tasks can not be completed from the squat position an only from the bend or stretch positions. ..I need some vicodin an some muscle relaxers. Hmm my girlfriend thinks that is unattractive. Is that natural selection? LOL

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