
I linked this Healthline article because I kept talking about how HIIT is painful but still comes with real health benefits—and it’s nice to have a clear, science-backed explainer in one place. If you’re new and you’re wondering why people even do HIIT in the first place, this is a good starting point before you jump into the workouts.
Available on Healthline
External purchase
Highlights
Recommended by
Cherie Lim