eli5, why do we need to keep out backs/spines straight when before we were born we where in the fetal position?

Question

Bad posture can lead to back pain. Why is a curved back bad posture when we spend the first months of our lives with a that posture?

In: 0

Answer 1

Because your bones haven’t fully developed by then. For the first couple of months, you don’t even *have* bones. And while most of your cartilage has begun to be replaced by bone by the time you’re born, you’re still pretty flexible.