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Weekly · Sunday Morning

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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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This is what Zone 2 training looks like | Peter Attia — Whalespan

Content›Video›This is what Zone 2 training…

This is what Zone 2 training looks like | Peter Attia

Peter Attia3m · 2023-12-22

Claims Made

9

Claims Supported

6

Support Rate

67%

Support rate

6 of 9 claims supported

6 supported3 partial / not

Claims from this content

7

✓Well SupportedZone 2 training should be performed at a level of exertion where conversation is possible but uncomfortable.✓Well SupportedZone 2 sessions should ideally be at least 45 minutes long, as shorter intervals may not produce the same physiological effects as longer, steady-state efforts.✓Well SupportedRate of perceived exertion is the primary metric for determining zone 2 training intensity.◐Partially SupportedPeter Attia does not monitor or fixate on staying within a specific heart rate zone during Zone 2 training.Well 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

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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.

✓

Zone 2 training can be effectively performed on treadmills, rowing machines, and swimming.

✓Well SupportedWorld-class cyclists train approximately 30 hours per week, with 70-80% of that time spent at Zone 2 intensity.

◐Partially SupportedPeter Attia's lactate levels were unexpectedly high during Zone 2 exercise, indicating a potential mismatch with his perceived physiological state and fitness level.