Yup
Kitesurfing has been great for my health too. It's complete body exercise and it is such fun that you push yourself to do it longer than you would less fun stuff like swinning or the gym.
The exitement gives you a good fast heartbeat (i'd guess 130) for all the time you are out there.
I started when I was 44. I still weigh what I weighed when I started 220 lbs @ 6'5" but what happened is the weight moved from around my waist to my shoulders. I'm also a Vegan. Both the diet and kitesurfing have brought my blood tests all back into the excellent range. My doctor told me that the values are those of a healthy 25 year old.
I was also having some back problems (especially lower back) from a car accident and working for many hours infront of the computer. Kiting fixed that with the help of a bit of yoga.
At this rate I think I will still be kiting when I'm 80
If you are into sports a Vegan diet is great. Keeps your body clean and you can eat a ton of food. Some great India, Thai and Italian grub out there. One of the coolest things is that with the cooking I do...tasty stuff that even non VEgans love... is so clean that you don't need detergent to clean the pots pans and dishes. When you need to use detergent to clean your stuff, just think of what it must be doing to your guts.
Oh also a Vegan diet will give you GAS and apart from being FUN
you will have your own central air in your wetsuit and that extra propultion for the low end.
Cheers
Fred