Cardio

Admit it—you have a favorite cardio machine at the gym. Maybe you love that particular machine so much that you’ve invested in your own at-home version. Whether you’re a treadmill enthusiast, stationary bike lover, or loyal to your elliptical machine, you’re not doing yourself any favors with your faithfulness. Muscle memory is a very real thing, and the worst part is that many people don’t switch up the variety even within their beloved machines.