Jim Skinner

Jim Skinner is 85 years old, but he says that doesn't mean he wants anything to do with "old lady games," like croquet and checkers.

Instead, on most days, you'll find him hitting the pool or throwing a discus.

The multi-sport threat and proud World War II vet competes in national competitions in events like swimming, rifle shooting and track and field.

He says he had a big motivation to start working out -- to get off the medications prescribed for him to treat his post-traumatic stress disorder following his military service.