As a former Marine, Mark Perna's interest in fitness was for survival. From the jungles of Hawaii, the unforgiving mountains of Afghanistan, and the bare deserts of Iraq, he has survived and thrived in the most austere environments. Now, he's bringing his expertise to you. Mark is currently living in Englewood, CO, with his fiancee Sara, where he is writing a memoir of Iraq entitled Don't Ever Call Me A Hero. He is attending the University of Colorado at Denver in the fall.