Evel Knievel
Motorbike stunt artist Evel Knievel (born Robert Craig Knievel) broke many world records and was famous for his death-defying stunts in the 1970s. Knievel was rumored to have broken or fractured more than 40 bones during his career, but he was a staunch advocate for safety helmets. Knievel’s organs weren’t as resilient as as his bones — he suffered from hepatitis C and needed a liver transplant. In 2005, he was diagnosed with idiopathic pulmonary fibrosis and required 24-hour oxygen therapy. He died in 2007 at the age of 69.

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