Cardio is good for us. We need both cardio and strength training for basic health, as well as our athletic goals. But what actually counts as cardio? Can you count walking? Lifting weights?

Nature Reviews Cardiology's clinical, translational, and basic science content is written by internationally renowned clinicians, academics, and researchers, and targeted towards readers in the ...

Their basic purpose—giving you a cardio workout—is downright identical. Yet these machines can inspire some big feelings: Most folks who use them strongly prefer one or the other. Those on ...