A fitness trend that took TikTok by storm, racking up more than 14 million views, may have some science behind it. The 12-3-30 treadmill workout, popularized by influencer Lauren Giraldo, promises a ...
Ask a group of runners whether they’d rather run on a treadmill or outside, and you’ll probably get some very strong opinions. Some can’t stand the boredom of indoor miles, while others love the ...
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