Originally Posted by
berner
I enjoy travel videos and You Tube has many. Recently I was watching villagers in a third world country preparing their fields for planting. They were still plowing with an ox but many of the villagers were then breaking up the plowed clods of dirt by hand with hoes. They were all bent over swinging their hoes all day but I noticed they al had completely straight back. I've noticed the same thing with villagers planting rice.
NPR had this story which sounds about the same as what you're saying.
https://www.npr.org/sections/health-...e-their-spines