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The 'Centenarian Decathlon' — train now for the life you want at 90
💡 Work backwards from what you want to do at 90 — then train for it now. You lose 8-17% of muscle per decade after 65, so today's fitness is tomorrow's reserve.
One of Attia's most powerful frameworks: the Centenarian Decathlon. It's a thought experiment that changes how you think about fitness.
Imagine yourself at age 90. What do you want to be able to do? Attia's list includes things like: pick up a grandchild (30 lbs from the floor), carry groceries up stairs, get up off the floor without help, walk briskly for 30 minutes, and maintain balance to avoid a fall.
Now here's the math that changes everything: after age 65, you lose roughly 8-17% of your muscle mass per decade, and strength declines even faster. So to deadlift 30 lbs at 90, you need to be able to deadlift much more at 60. Work backwards from 90, and your training targets at 50 or 40 become surprisingly ambitious.
The takeaway: you're not training for how you look today. You're building a reserve for the decades when your body is actively working against you. Most people don't start training seriously until it's too late to build enough reserve.
Source: Outlive: The Science and Art of Longevity — Peter Attia