Sustenance is really both what we're taking in early food and movement. We do a lot of dissociating during the course of our lives, which isn't healthy. As especially women as we age, we have to get resistance training in there. I've had to learn to back off because this is how you injure yourself. You need to have active recovery, but you have got to lift heavy stuff. Do it with someone you know, on who knows what they're doing.