Kim Kardashian Works Out 'Every Single Day for Over an Hour'

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Kim Kardashian may not be Snapchatting her workouts, but she's still getting her fitness on.

The 36-year-old reality star took to Snapchat on Saturday to post a rare video of a morning workout, letting fans know that while she might not document it, she works out "every single day for over an hour."

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"I never Snapchat my workouts, just because… I don't know why -- I'm just not Kourtney and Khloe," Kim said after posting a video of her intense workout during the family's Costa Rica vacation. "But it's like, if I don't Snap it, then it's as if it never happened. But I work out every single day for over an hour."

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Khloe, who often posts videos of her workout sessions with Kourtney, also took to Snapchat to comment on her morning burn with Kim.

"Kim and I had a really good workout today, but for some reason we're not good at Snapchatting our workouts," she said. "But just so you know, we killed it."

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ET sat down with Khloe earlier this month, where she said working out with Kourtney and Kim helps her stay in the zone.

"I always thought that Kourtney was like a little bit of a p-*-*-s-y in the gym so I would never work out with her, because I'm a beast in the gym," Khloe said, adding that her older sisters "all compete fitness-wise." "But now we've worked out together and I'm like, 'Kourtney is badass.'"

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