Jim Owen is 78 years old and he is in awesome shape. He works out regularly and part of his routine is doing three sets of 50 push-ups. That's pretty amazing for a man of his age.

But for most of his life he was a self-described, "certified couch potato." On his 70th birthday, his life changed when he watched a video of himself going on stage to give a speech. "My shoulders were hunched over. My knees were shot, so I was sort of shuffling along. And I had chronic back problems. It was humiliating."

Jim lost 50 pounds, hired an experienced trainer and got serious about working out. And the impact on his life has been incredible.

He wanted to share his new passion with others so he wrote and published a book called "Just Move: A New Approach to Fitness After 50." For anyone who has ever said late in life, "Gee, I wish I could get in shape," this book is for you.

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