Yes, 50 is the new 40 and 70 is the new 60 and so on, but can you imagine carrying on your fitness routine well into your 80s? Joanne Good from the Daily Mail can, particularly since her 83-year-old mother is her role model, her motivator, her ... yoga teacher. Yes, someone just shy of 85 might possibly be more fit than you. Scary? Nah -- inspirational is more like it.

Yoga is the kind of activity you can do no matter what your age. It's one of those things that you can take at your own pace, and if one of the poses is too difficult, you can modify it or just move on. Yoga can be challenging or relaxing -- it's up to you. But no matter how you practice, you can't deny the good it does your body.

So what are you waiting for? Get yourself to a yoga class, pronto. And, more importantly, keep it up.