Does anyone else here think the same way? What is it that you do ( not necessarily even for enjoyment) and what is it that compels you to do your best?
I find that any freeform physical activity is something I like to excel in. I bike everywhere in the summer season, I usually ride cross country, and end up just riding until my legs can't pedal anymore. I do a lot of running as well, mostly on bare feet ( I actually find it a lot easier than in shoes) and do the same as with my biking. I camp as often as whatever job I have at the time permits me to do, and generally speaking am hardly ever off my feet. Living close to a national park, I hiking frequently as well. I find nature is a good place for contemplation without distraction.
Winter is usually more reserved though I do try to ski as as often as possible. I think of it as a good way mastering control of your body and improving reflexes. I still spend a lot of time walking around outside though, as the cold weather sends most people inside. I enjoy having an empty city to walk through and discover.

I'm sure this has been discussed before, but didn't care to search for and dig an old thread up over this. I imagine any martial art would be suitable for SPD, I personally have not tried any so I'm not too sure about that. I did try yoga a couple of times, and thought it was interesting but didn't continue with it. What are your thoughts on this?