Kate Hudson in the December issue of Harper's Bazaar revealed that hot yoga, SoulCycle, and dance are part of her fitness routine.

Also known as Bikram yoga, hot yoga is a series of 26 postures, or asanas, performed in a heated studio between 90 and 105 degrees at 40 percent humidity. It sounds challenging, and it is: A new Duke University review of 76 yoga-related injuries found that Bikram was commonly linked to injuries, along with Pranayama (a style focused on breathing control) and Hatha (the umbrella term for physical yoga practices).

But it isn't the "hot" part of the yoga that was to blame. The study suggests that it was the postures that could be the culprits, since they were associated with the most injuries - headstands, shoulder stands, and lotus position. Common injuries were musculoskeletal, which included fractures, ligament tears, and joint damage.

This, however, shouldn't mean you need to abandon hot yoga. Researchers suggest avoiding the tricky positions if you're a beginner. They also said that Bikram-style yoga tends to be competitive. However, you should remember that yoga is about your body and your personal practice - so just because your classmates can do a headstand, it really doesn't mean you have to do one. Do it at your own pace to avoid injuries.

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