What are you on about? It's well known that bone density and strength increases with load: https://en.wikipedia.org/wiki/Mechanostat https://en.wikipedia.org/wi

What are you on about? It's well known that bone density and strength increases with load: https://en.wikipedia.org/wiki/Mechanostat https://en.wikipedia.org/wiki/Mechanostat If you didn't learn this in grade school it might already be too late.