If you’re short on time and looking for the “best” workout, you’ve likely heard the hype: HIIT burns fat fast. It’s intense. It’s efficient. But what if we told you there’s a smarter, more sustainable form of training that does more than just burn calories — it transforms your body, metabolism, and longevity?

Spoiler: it’s resistance training — and if you could only choose one form of exercise for long-term results, this should be it.