Hammer Head
- Episode aired Aug 19, 2010
- TV-PG
- 44m
Daniel meets Dean Karnazes. He's run 50 marathons in 50 days, and then ran 1300 miles back to the start. But how can Dean's body not suffer the exhaustion and fatigue faced by everyone else ... Read allDaniel meets Dean Karnazes. He's run 50 marathons in 50 days, and then ran 1300 miles back to the start. But how can Dean's body not suffer the exhaustion and fatigue faced by everyone else on earth? John Ferraro is rumored to have a skull that can withstand sledgehammers, bowlin... Read allDaniel meets Dean Karnazes. He's run 50 marathons in 50 days, and then ran 1300 miles back to the start. But how can Dean's body not suffer the exhaustion and fatigue faced by everyone else on earth? John Ferraro is rumored to have a skull that can withstand sledgehammers, bowling balls and even jackhammers.