About three years after winning season 8 of “The Biggest Loser,” Danny Cahill started sustaining injuries from working out so much.

“It became really evident that my body was really tired, and my joints were breaking down,” the 56-year-old from Broken Arrow, Oklahoma, tells TODAY.com. “I would have injury after injury, and I couldn’t keep it up.”

The Biggest Loser aired for 17 seasons from 2004 until 2016 on NBC, which is owned by NBC Universal, TODAY’s parent company. Those who lost the highest percentage of weight competed for prizes, including $250,000 and the title of "the biggest loser" for the winner.

After Cahill’s win in 2009 because he shed 239 pounds in six months, three weeks and five days, he returned home and added as much movement as he could into his daily routine.

“I ex

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