wouldn’t it come down to gravity?
having your bones lined up with gravity
so the musculature has to do as little work as possible to support the skeletal structure.
the organ systems can drain and circulate.
without appropriate posture, your body will be pulled down in awkward directions. you will have to fight against it.
good posture will keep you tethered to the ground while simultaneously supporting your upright structure.
look at the picture…
the exaggerated lumbar curve will put additional weight on the spine.
gravity will pull it down.
this requires additional expenditure of atp, leads to nerve compression, pain, etc…
it’s fairly apparent that this posture will lead to an increased amount of suffering.
in the process of living, we lose our optimal posture.
it begins when we are diapered.
and then put into chairs.
for most people its a downhill struggle.
a few of us become aware of posture.
and use the practice of posture to effect structure.
ultimately we are physicists, working with the forces of nature as they effect us.
it can be nice to get outside guidance from a more experienced physicist, as there are things that are outside of our awareness.