Zone 2 Target: → 3-4 Hours Per Week (Heroic +1 #1878)

17 Dec 2025 · 5 min
5:05

Brian Johnson is aiming for 3-4 hours of Zone 2 cardio per week, the amount Peter Attia recommends for longevity. Zone 2 is 60-70% of max heart rate. Johnson plans to hit this target with short trail walks instead of longer bike rides, bumping up from his current 1 hour per week.

Questions this video answers

Exercising at 60% to 70% of your maximum heart rate.

220 minus your age.

Three to four hours per week.

150 minutes (2.5 hours) per week.

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