TikTok’s left-right push-up challenge is viral for a reason. Not only is it set to a catchy song, it also features one of the best full-body exercises you can do: Plank shoulder taps. Plank shoulder ...

If you've ever tried to lift a suitcase into an overhead bin, hang a curtain rod, or carry three grocery bags in one trip, you already know how much your shoulders matter. They're the unsung heroes of ...