A healthy dose of cardio is an important part of your exercise routine, and for a lot of us, "zone 2" cardio is going to make up a big chunk of that. Low-intensity cardio—sometimes called LISS or ...

From sprints to incline walking, the data shows which workouts burned the most fat – and it's good news for runners ...

Few would disagree that cardio, also called aerobic exercise, is good for your health. Of the 10 most common chronic diseases, seven are "favorably influenced by regular physical activity," according ...

After years of hyping super intense workouts as the best way to exercise, fitfluencers have recently flipped the script. Now, they’re touting easier, chiller zone 2 training as the key to everything ...

In the world of fitness trends, few ideas have travelled as fast as “Zone 2 cardio.” It shows up in podcasts, marathon plans, and even longevity clini.

Plenty of research touts the importance of cardiorespiratory fitness (CRF)—also known as cardio fitness, cardiovascular endurance, and aerobic fitness—as a health marker, as well as an athletic ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. January 12, 2026 Add ...