That happy, invincible feeling you get when you're floating through the air at the peak of a workout? You've probably heard that it's something cal
Read MoreIf you've recently invested in a fitness tracker of some description, you're probably familiar with nagging messages reminding you to take 10,000 step
Read MoreThe running arm of sportswear leviathan adidas now reveals the latest in its line of performance-enhancing footwear. Dubbed Ultra BOOST, the running s
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