HIIT vs. Zone 2 Cardio: Which Should You Do When
Scroll through any fitness app and you’ll see two camps arguing: the slow-and-steady Zone 2 crowd and the all-out HIIT crowd. The truth is you don’t have to pick a side. Zone 2 and HIIT train different systems in your body, and the best cardio plans use both — just not on the same day,…
