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Yes, this is Ozzy's son: How Jack Osbourne uses fitness to fight off life's challenges, including MS

Yes, this is Ozzy's son: How Jack Osbourne uses fitness to fight off life's challenges, including MS

When your dad is Ozzy Osbourne, it might be hard to keep the crazy train from going off the rails. Jack Osbourne says he went from a sedentary childhood to being “a pothead party animal,” then got sober. But he also grew bored.

“I started looking at options for what was fun,” Jack said, now 31. “I got into rock climbing and through a desire to get better realized I needed to be fit.”

That’s what led to the launch of his reality show “Jack Osbourne: Adrenaline Junkie” in 2005. He trained in Muay Thai in Thailand, ran with the bulls in Pamplona, climbed the face of El Capitan in Yosemite — all in the first season.

In 2012, he was diagnosed with multiple...

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