I've watched this tonight with my partner. and I have to admit, this was my fear - to lose my mobility. I couldn't lose the weight, never lost more than a stone and a half. So I do feel for him. And it could have been me.
iv gone in the space of year from a size 20 to a size 30 that can barely walk now and its my fear totally of being stuck in im not loosing anything at mo because the less active the harder it is so totally related to your post x