I think this somewhat makes sense. Just going on the discussion, I was missing that this is using "aging" as shorthand for "the degenerate effects of aging."

I think this somewhat makes sense. Just going on the discussion, I was missing that this is using "aging" as shorthand for "the degenerate effects of aging." I'm assuming the growth effects of aging would be more "maturing" or some such. I still think calling this "defeating aging" is an odd framing. But it makes sense in the standard context here.