Everything is hot now. The Earth, teddy coats—and, especially, our workouts. While hot yoga classes have been around for ...

Here’s what happens to your body during a hot fitness class. By Emma Yasinski For some people, sweating through an intensely hot workout class can border on a spiritual experience. For others, a ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. So many of us have been there: striding into a group fitness ...

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