Bob Becker was 57 before he ran his first marathon and he was running strong until a double whammy threatened to end his running career.

On his 32nd birthday, Roy Pirrung started running to lose weight and quit smoking. Nearly 30 years later, he's still running and shattering world records.

Some have said that the accomplishments of runner Ed Whitlock rival Roger Bannister's breaking of the four-minute mile barrier.

Orlando Magic Sr. VP Pat Williams is a man of many passions -- marathons, writing books and his 19 children!

Ready, set, run! Growing Bolder takes you to the only place in the world where you'll find so many colorful characters, both in and out of costume, to find out why these days, many marathons are dominated by people in their 40s, 50s and beyond.

It's not entirely normal to be a cross-country skier that is a retired kindergarten teacher. It's even more amazing that Barbara Klippel overcame a fall down a flight of stairs and a broken skull to win the premiere cross-country ski marathon.

To promote health and fitness for seniors and to educate people about the preventable disease of Type II diabetes, one 70-year-old decided to rollerski his way across Canada.

For a man who has run over 100 marathons at least 100 miles long each and climbed to the top of all the seven summits of the world, it's hard to believe Marshall Ulrich was a bit of a coach potatoes until he was almost 30.

All of us get hungry and eating is a necessary part of life so it shouldn’t be an amazing accomplishment, right? Right, unless you're Rich Lefevre, a boomer who can scarf down five pounds of birthday cake in less than 12 minutes!

Wendy Chioji has been the face of Orlando news for 20 years. Her battle with breast cancer enlightened all women; her determination to help others was only equaled by her dedication to becoming a world-class athlete.

Ray Zahab used to be a smoker who lived an unhealthy life. After a few major life changes, he's on the other side of the spectrum, running marathons, raising awareness for important causes and living an adventurous life.

Known as the "Nun on the Run," Sister Madonna Buder has finished about 40 marathons and 34 Ironman triathlons and two years ago, at the age of 75, she became the oldest woman to finish the Ironman World Championships.

81-year-old Robert Gralley has completed more than 40 marathons and is not slowing down any time soon.

Jeanne Stawiecki is living proof that it's never too late to dramatically change your life -- even in middle age.