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Grandma Luge, the oldest woman to ever compete in the Winter Olympics, is facing her toughest opponent yet -- cancer.

Triathlete Hunter Kemper is three-time Olympian who has been to Sydney, Athens and is on his way to Beijing. He's the No. 1 triathlete in the world, but he's taking his first steps in a very important march.

Hunter Kemper, a world-renowned triathlete, doesn't go to a race without his running shoes, bike or his parents.

Think you have to be a teenager to be a big star in the Olympic Games? Check out these athletes who are proving you can still be a sports star in your 40s, 50s and even 60s!

After witnessing the greatest week in swimming history at the 2008 Summer Olympics in Beijing, 3-time Olympic gold medalist and NBC analyst Rowdy Gaines dishes all the behind-the-scenes dirt to Growing Bolder.

It was a mess of Olympic proportions. An all-electric competitor replaced the venerable Zamboni, but the ice at the speed skating venue at the 2010 Olympics was a disaster. A Zamboni, which made its Olympic debut exactly 50 years ago, came to the rescue.

Gymnast Wendy Bruce went from gold medalist to parent and coach. And during that transformation she realized what was really the secret to success -- fun!

America's top triathlete has his sights set on his fourth Olympics in 2012, but this time, he'll be competing for more than his country and himself.