Marydoll
^I trained myself to relax into my falls, so that I do not damage myself.^
Sometimes, you don't have time to relax into falls, as your are hurtling down icy stairs. It is over in seconds! 
Marydoll I quite agree. I fractured 2 vertibrae in my upper spine when my feet went from under me on a grassy slope and I landed flat on my back with an almighty thump that completely winded me. It took me a minute or two to recover from that and get up (I was alone).
However, usually I fall forwards and forward falls you can collapse into, not always, but most of the time. The main thing is I do not put my arms out, as I did as a child and end up with sprained wrists and broken arms.