How is he taking care of him self? The man is injured and his still wrestling classic matches...
vs. Jeff Hardy
vs. AJ Styles
I think what he meant was physically taking care of himself, outside the ring. I agree with John though, WWE schedule would be too much for him, heck he even left because of that. Being a WWE wrestler is more demanding to you body than MMA, i'm sure.
I still have a dream of him calling it quits in Wrestlemania though.