While humans evolved to walk on two legs, there was not much material that evolution could use. Our S-shaped spine, which was useful when climbing on trees, “suddenly” turned 90 degrees. It’s like lining up 26 separate cups and plates on top of each other and trying to keep it balanced. Our vertebrae are not plates, but vertebrae and discs. An extremely heavy object, such as a head, is tried to balance it!
The S-shaped structure of our spine and its inward curve make it easier for us to exit the womb. It has also been found that this shape contributes to balance on both legs. In other words, this structure has not been changed much in the evolutionary process. But just because a feature contributes to us doesn’t mean it’s complete or perfect! The load on our S-shaped spine inevitably leads to lower back and back problems. Especially if you are doing sports that allow you to be constantly active, this burden increases exponentially. In the U.S. alone, 700,000 people are hospitalized each year with a fractured spine. Our backs haven’t even evolved enough to carry us all our lives! Latimer describes it this way:
“If you take really good care of your spine, it will take you to 40-50 years of age. After that, unfortunately, you’re on your own…”
After millions of years, if it’s not dizzying to still bear the traces of evolution like a stamp on our bodies, what is it?