Only humans have a slight in-ward (lordotic, concave) curve in the lower back called the 'lumbar curve'. It is this most precious curve that allows us to stand and walk upright.
Your Standout Curve
Your Standout Curve
Your Standout Curve
Only humans have a slight in-ward (lordotic, concave) curve in the lower back called the 'lumbar curve'. It is this most precious curve that allows us to stand and walk upright.