Zone 2 Cardio: What It Is and Why It’s Popular in 2026
If you’ve scrolled through fitness social media lately, you can’t miss all the buzz about Zone 2 cardio. It’s not just another fleeting fad—there’s actually something to it. Zone 2 cardio means doing low-intensity exercise where your heart rate sits between 60% and 70% of your max. That way, your body mainly burns fat for…