MMA at 52?

I've been reading That Girl is Funny for a while, but only realised yesterday that Cheryl Ragsdale is 52. And have to admit I'm ageist, who would have thought you could take up a sport like Brazilian Ju-Jitsu (very) late in life and love it so much?
Cheryl, a former management consultant started training to make some health changes in her life and ... well, watch the video and you'll see.
Best quote: " You don't need strength, you just need to know how to leverage people."  

Do you know anyone else taking up intense sports at an, umm, unusual age?