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Weekly · Sunday Morning

Five longevity claims.
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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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The Longevity Toolkit: Peter Attia’s 5 Tactics to Improve Longevity — Whalespan

Content›Video›The Longevity Toolkit: Peter…

The Longevity Toolkit: Peter Attia’s 5 Tactics to Improve Longevity

Peter Attia16m · 2025-10-27

Claims Made

28

Claims Supported

26

Support Rate

93%

Support rate

26 of 28 claims supported

26 supported2 partial / not

Claims from this content

25

✓Well SupportedEmotional health, happiness, and well-being are crucial for longevity and healthspan.✓Well SupportedExercise is the most important thing an individual can do for their health and longevity.✓Well SupportedDoses of melatonin above 1mg are likely too high for most people, with benefits and safety potentially found in the 300-600 microgram range.✓Well SupportedExercise is considered the number one intervention for longevity by experts in the aging field, followed by nutrition.✓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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Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.

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Optimizing sleep hygiene, including a very dark and cold room, and maintaining consistent wake-up times are crucial for regulating sleep.

✓Well SupportedSarcopenia can be addressed by consuming enough protein and engaging in resistance training.

✓Well SupportedAs individuals age, they develop anabolic resistance, requiring more protein over time for the same anabolic stimulus.

✓Well SupportedDehydration is an underappreciated contributor to medical conditions in aging individuals due to a lost connection between thirst and hydration status.

✓Well SupportedConsistency in wake-up time, especially without daytime napping, helps regulate bedtime by building sufficient sleep pressure.

✓Well SupportedKey behavioral strategies for improving sleep include maintaining consistent bedtimes and wake times, ensuring the bedroom is dark and cold, avoiding stimulating activities for two hours before bed, and refraining from eating or drinking alcohol for three hours before bed.

◐Partially SupportedAshwagandha may be helpful for sleep for some individuals.

✓Well SupportedSleep becomes lighter and sleep architecture changes with age, and men over 65-70 may experience increased nighttime urination.

✓Well SupportedMelatonin acts as a 'starting official' for sleep, initiating the process but not guiding the sleep cycle throughout the night.

◐Partially SupportedSleep is very important for both near-term and long-term brain function.

◐Partially SupportedMedications and supplements are a category of longevity interventions with varying efficacy.

◐Partially SupportedUsing a food tracking app for a week can help evaluate current protein intake and reveal if it is suboptimal.

◐Partially SupportedEmotional health and well-being tools are a category of longevity interventions.

◐Partially SupportedAnabolic resistance, where the body becomes less responsive to muscle protein synthesis, develops with age.

◐Partially SupportedInadequate protein intake is a significant problem for aging populations, particularly women.

◐Partially SupportedKnee, hip, and shoulder replacements have significantly improved quality of life.

◐Partially SupportedThe death of one partner shortly after the other in long-term couples suggests social connection impacts lifespan.

◐Partially SupportedSleep quality significantly impacts brain function and metabolic health, influencing disease risk.

◐Partially SupportedThe recommended protein intake is approximately one gram per pound of body weight daily.

◐Partially SupportedBeing physically active improves how people feel, even with back pain.

◐Partially SupportedInactivity can exacerbate lower back pain more than activity.