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Josh Larson was about 14 years old when he went to a carnival and decided to give the climbing wall a whirl. It was nothing major—about 25 feet, he recalls—but the instructor was impressed and made a ...

Stair climbing gets the heart pumping quickly, as anyone who’s ever skipped the elevator or escalator knows. That makes it an excellent low-impact exercise that’s as accessible as walking, since ...

Given how goddamn hot Jennifer Aniston is, we're willing to try any workout – and we mean any – that's got her seal of approval. Introducing, the VersaClimber: which Jennifer candidly told Byrdie she ...

OK, what is a calorie, anyway? It’s a unit of energy, defined as the amount of energy needed to raise the temperature of 1 liter of water by 1 degree Celsius. (This is your common “food calorie”: ...