@dr.garthdavis08: Zone 2 vs HIIT? HIIT does tend to get better body composition in head to head trials but mostly for younger people, and differences are small. If you are not very fit don't worry about HIIT. Get your zone 2 and then sprinkle in HIIT when you are fitter. And don't forget about resistance!!

Dr. Garth Davis

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Sunday 25 January 2026 14:24:34 GMT