MMA Fanhouse has this bit of from interview with UFC Hall of Famer Randy Couture who will fight Brandon Vera this weekend on UFC 105:
You're taking this fight after an 11-week layoff: One of the shortest you've ever had in your career. Do you like having that little time between fights?
Yeah, that was one of the things I liked about this fight: It's a very quick turnaround and I was very healthy after the Nogueira fight, so it allows me to keep moving. The last time I fought two times in pretty quick succession were my fights against Chuck Liddell and Tito Ortiz [in June and September of 2003], and that worked out pretty well for me, so I feel great about it.
I know you get the question all the time, but how do you stay in good enough shape to fight twice in three months at age 46, and how much longer can you do it?
I don't know if there's any one answer. I keep my body healthy. I stay in good shape. In the last couple years I've spent a lot of time getting my blood chemistry evaluated, taking the supplements and eating the things that my blood chemistry says I should be. That's been the biggest thing the last couple years, age 45 and 46.
Is it realistic to think you could be fighting at 50?
Anything is possible. I'm not thinking that far ahead, but I'm not ruling anything out either. I'm just preparing myself for a great fight and I hope I'll have more of them.

