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Rapamycin extends mouse lifespan 9–14%
NAD+ precursors reverse aging in humans
Blue-light glasses improve sleep quality
Walking 10 min after meals blunts glucose
Verdict change — caffeine half-life downgraded

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How Much Exercise Is Really Enough for Longevity? — Whalespan

Content›Video›How Much Exercise Is Really …

How Much Exercise Is Really Enough for Longevity?

Peter Attia2m · 2025-08-08

Claims Made

8

Claims Supported

6

Support Rate

75%

Support rate

6 of 8 claims supported

6 supported2 partial / not

Claims from this content

7

✓Well SupportedA good target for training intensity is 'reps in reserve' of minus two, meaning stopping the set when two repetitions away from failure.✓Well SupportedExercising less than an hour a day may require greater focus and specificity to achieve desired outcomes.◐Partially SupportedExceptional exercise results are possible with focused 30-minute sessions 3.5 hours per week, provided intensity and specificity are high.◐Partially SupportedPeter Attia runs approximately 20 miles per week, considering it on the low end for optimal health.Partially Supported

More from Peter Attia

Peter Attia on Zone 2 Cardio

Peter Attia on Rapamycin (with Matt Kaeberlein)

Attia walks back the clinic protocol: too aggressive for healthy adults

Discussion

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AV

A. Volkovreader

4h

Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

NP

N. Park

2d

Would love a "what would change this verdict" RSS feed. Sign me up if it exists.

◐

Objective output data, such as hard metrics, are the best predictors of lifespan and healthspan.

◐Partially SupportedCardiovascular training should be either true Zone 2 or Zone 5 intensity, not Zone 1 or Zone 3.

✕Not SupportedLow-intensity exercise like watching the news while on a treadmill is unlikely to produce exceptional results.