There's a guy who played multiple sports growing up, and went to college on a baseball scholarship. But right after his junior year in 2012, he borrowed a friend's skateboard and had a bad accident that almost killed him. He fell turning a corner...the left side of his head hit a curb...and he ended up with a serious blood clot called a subdural hematoma.

According to Runner's World, doctors actually put him in a medically induced coma for two-and-a-half weeks, and had to remove a large section of his skull because of the swelling. At that point, they only gave him a 10% chance of surviving. Then once he was out of the woods, he had to do a ton of physical therapy almost every day for several months.

But after about a year, he made a full recovery. He went back and finished school. Now he works as a gym teacher...and just finished his first Ironman race about a week-and-a-half ago. That's where you swim two-and-a-half miles, ride a bike 112 miles, then run a full 26-mile marathon. He finished in 14 hours and 38 minutes, which was middle-of-the-pack. But obviously the point wasn't to win.

He says he never looks back or asks why it all happened to him. He just keeps moving forward and never takes a single day for granted.