[blakeja]

Martial arts.

I have been practicing shaolin kung fu for 11 years, but I think most systems that incorporate a good 60 minutes of full body movement are going to do the trick. Surprised I am the first to post this as I have never found a more complete exercise system. Not to mention the internal aspects I have found to be extremely beneficial over the course of my life.

Yoga is pretty close, especially if you are doing ashtanga, brutal yoga!