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Weekly · Sunday Morning

Five longevity claims.
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Every Sunday.

Last Sunday

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 to Fall Asleep & Stay Asleep | Ashley Mason, Ph.D. — Whalespan

Content›Video›How to Fall Asleep & Stay As…

How to Fall Asleep & Stay Asleep | Ashley Mason, Ph.D.

Peter Attia10m · 2025-03-25

Claims Made

16

Claims Supported

14

Support Rate

88%

Support rate

14 of 16 claims supported

14 supported2 partial / not

Claims from this content

14

✓Well SupportedOptimizing sleep quality can be achieved through temperature regulation, including a cool room, temperature changes during sleep, and warming prior to waking.✓Well SupportedWarming the feet and hands promotes sleep by radiating heat from the body's core.✓Well SupportedReplacing down comforters with cotton blankets can improve sleep quality, particularly for women experiencing night sweats.✓Well SupportedIndividuals who frequently wake to urinate may be able to train themselves to go back to sleep without urinating if they don't truly need to.Well Supported

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

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A. Volkovreader

4h

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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N. Park

2d

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

✓

Reducing fluid intake with dinner and after dinner can significantly decrease nighttime urination in men aged 45 and older with a prostate.

◐Partially SupportedScheduling 'worry time' during the day can help prevent nighttime awakenings.

◐Partially SupportedAdding an electrolyte tab with the right osmolarity to evening fluids can help reduce nighttime urination.

◐Partially SupportedScheduling dedicated time for worrying during the day can help reduce rumination and prevent it from interfering with sleep at night.

✓Well SupportedInsomnia patients show impaired vasodilation in hands and feet in response to warmth, suggesting a link between thermoregulation and sleep problems.

◐Partially SupportedAddressing the root cause of stress or anxiety during the day is necessary to prevent it from demanding attention in the middle of the night.

◐Partially SupportedScheduled worry time can be used to manage worries and declutter the rest of the day.

◐Partially SupportedUsing a down comforter or similar heat-trapping bedding can disrupt the body's natural circadian temperature rhythm, leading to poorer sleep quality.

◐Partially SupportedInsomnia characterized by difficulty initiating sleep and insomnia characterized by waking in the middle of the night with racing thoughts are distinct but related issues.

◐Partially SupportedAligning bedtime with the body's natural sleep-producing window is a key component of Cognitive Behavioral Therapy for Insomnia (CBTI).