Audit a URL →

Sign in Sign up free

Loading…

Weekly · Sunday Morning

Five longevity claims.
Worth your time.
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

5 audits·1 verdict change·0 affiliate links·Every Sunday

Joining 1,247 readers — founders, MDs, and longevity-obsessed people who fact-check their own health decisions.

Browse

Decisions Claims Content Creators

Product

Audit a URL Sunday roundup API (soon)Pricing

About

FAQ Methodology Editorial Standards Corrections Press & brand RSS feed

Legal

Terms of Service Privacy Policy DMCA

Finally, something serious in this space.
Because we actually read the papers.

© 2026 Whalespan. Independent, evidence-graded longevity.

Loading…

How Your Thoughts Are Built & How You Can Shape Them | Dr. Jennifer Groh — Whalespan

Content›Video›How Your Thoughts Are Built …

How Your Thoughts Are Built & How You Can Shape Them | Dr. Jennifer Groh

Andrew Huberman2h 17m · 2025-11-10

Support Rate

84%

193 of 231 claims supported

Support rate

193 of 231 claims supported

193 supported38 partial / not

Claims from this content

117

✓Well SupportedHelix Sleep mattresses and pillows are tailored to individual sleep needs assessed through a quiz.✓Well SupportedElement is an electrolyte drink containing sodium, magnesium, and potassium without sugar.✓Well SupportedThe book 'Protocols: An Operating Manual for the Human Body' offers scientifically substantiated protocols for sleep, exercise, stress control, and focus/motivation.✓Well SupportedThe Helix Dusk Mattress is reported to improve sleep depth, duration, and quality.✓Well SupportedAGZ is a nightly drink formulated with specific ratios of sleep-supporting compounds to improve sleep quality and depth.

More from Andrew Huberman

Andrew Huberman on Creatine

Huberman X thread: creatine and aging

Andrew Huberman on Morning Sunlight

Discussion

Native comments, Twitter mentions, and Reddit threads about this content — surfaced together so the conversation isn't fragmented across platforms.

M

Share your read of this content…

Posting publicly as you · linked to your social profiles

Sort by:

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.

✓Well Supported

Mattress characteristics like softness, firmness, and breathability significantly impact sleep quality and should be tailored to individual needs.

✓Well SupportedSleep is the foundation of mental health, physical health, and performance, and optimizing sleep is crucial for happiness, productivity, and overall life quality.

✕Not SupportedNon-stick pans can contain toxic compounds like PFAS, which are linked to hormone disruption, gut microbiome disruption, and fertility problems.

✓Well SupportedAGZ is a sleep supplement that provides excellent sleep quality, leading to waking up more refreshed.

✓Well SupportedOur Place's Always Pan Pro is a non-stick pan made of pure titanium without chemicals or coatings, free from PFAS and other harmful chemicals.

✓Well SupportedMagnesium threonate, theanine, chamomile extract, glycine, saffron, and valerian root are clinically supported ingredients that can aid in falling asleep.

✓Well SupportedReal-time glucose monitoring can help individuals develop eating and lifestyle habits that support metabolic health, mental clarity, and sustained energy.

✓Well SupportedProper hydration and adequate electrolytes are critical for optimal brain and body function, as even mild dehydration can impair cognitive and physical performance.

✓Well SupportedDrinking Element with water upon waking and during exercise helps ensure adequate hydration and electrolyte levels, especially during intense activity or hot weather.

✓Well SupportedLong-wavelength light can pass through the entire body, scattering internally to improve the health of all organs by supporting mitochondria.

✓Well SupportedPoor sleep quality and insufficient sleep negatively impact mental health, physical health, and performance.

✓Well SupportedIndividuals consuming caffeine, exercising, or eating a clean diet may not be getting sufficient electrolytes.

✓Well SupportedSome companies focused on personalized glucose management recommend a brisk walk after consuming foods that spike glucose to suppress the spike.

✓Well SupportedHearing loss is correlated with dementia.

◐Partially SupportedPerformance under high stakes is worse than under low stakes due to over-recruitment of motor units and excessive motor effort.

◐Partially SupportedGlucose is the primary fuel for brain cells and directly impacts cognitive function, mood, energy, tenacity, and willpower.

◐Partially SupportedNeurons in the superior colliculus are responsive to sound and are affected by eye position at the time of sound presentation.

◐Partially SupportedRadiation from Bluetooth headphones is not a health concern compared to other daily sources.

◐Partially SupportedThe eardrum moves in connection with every saccadic eye movement, precisely time-locked to the movement's onset.

◐Partially SupportedThe superior colliculus is a brain structure responsive to both visual and auditory stimuli, with its auditory receptive field shifting based on eye position.

◐Partially SupportedSegregating social media use by using a dedicated, older phone with only specific platforms and disabling browser access can limit engagement.

◐Partially SupportedSeeing a horizon widens visual angle and shifts the body towards a parasympathetic state, reducing sympathetic nervous system activation.

◐Partially SupportedThinking involves running simulations using the brain's sensory-motor infrastructure.

◐Partially SupportedThe maximum delay for sound to reach one ear after the other is approximately half a millisecond.

◐Partially SupportedVisual focus training exercises can benefit individuals with ADHD and improve cognitive focus.

◐Partially SupportedClinicians measure otoacoustic emissions using a microphone in the ear canal.

◐Partially SupportedFocus can be modulated by epinephrine, acetylcholine, and dopamine.

◐Partially SupportedMusic's organization of language into riffs, motifs, melodies, and choruses makes information easier to remember.

◐Partially SupportedAcetylcholine is the neurotransmitter responsible for attentional spotlighting.

◐Partially SupportedIf thunder is heard within 5 seconds of lightning, seek shelter.

◐Partially SupportedChanging work locations can be beneficial for productivity.

◐Partially SupportedEar structures receive top-down input from the brain, potentially carrying information about eye position.

◐Partially SupportedMuscles in the ear affect the motion of small bones connecting the eardrum to the cochlea, and cochlear cells can act like muscles.

◐Partially SupportedLarge glucose spikes and crashes negatively impact cognitive and physical performance, causing brain fog, fatigue, irritability, and hunger.

◐Partially SupportedThe evolution of motor neurons progressed from controlling trunk movement, to fin flapping, and finally to fine finger movement.

◐Partially SupportedElement is consumed dissolved in water during physical exercise, especially on hot days when significant water and electrolyte loss occurs.

✓Well SupportedThe visual and auditory systems are coordinated, with muscles in the eardrum tracking eye movements.

◐Partially SupportedYounger generations are on a trajectory for earlier and more severe hearing loss compared to older generations, likely due to constant use of earbuds at high volumes.

✓Well SupportedDirecting vision towards a specific point (foveating) activates the locus coeruleus and increases norepinephrine, leading to heightened internal arousal and attention.

◐Partially SupportedThe superior colliculus receives input from auditory and touch systems, in addition to visual input, to process external sensory information from specific locations.

◐Partially SupportedThe brain may actively manipulate sound transduction in the ears, potentially turning down the volume just before speaking.

◐Partially SupportedThe falling reflex is likely the most important reflex in the vestibular system for reducing injury risk from falls.

◐Partially SupportedThe brain performs significant computation to maintain a stable perceptual experience despite massive shifts in the visual scene on the retina during eye movements.

◐Partially SupportedMoving seats around an auditorium during long scientific conferences can help anchor attention.

◐Partially SupportedSome auditory information is perceived through bone conduction via vibrations to the bone in front of the ear.

◐Partially SupportedRe-entry into communication after disconnecting from technology can be painful and rapidly disrupt a state of calm.

◐Partially SupportedThere is a body map correlating low to high frequency with movement, where emphasizing a point with fingers corresponds to high frequency, and using the whole body corresponds to low frequency.

◐Partially SupportedShort, defined activities like language app lessons or NYT games can provide satiety and an exit point from phone use.

◐Partially SupportedActivities with a seamless on-ramp to full attention and no defined endpoint, such as slot machines, require careful consideration.

◐Partially SupportedWhen using a smartphone out of boredom, swap the activity for something potentially healthier, such as listening to a podcast or audiobook, or reading a book.

◐Partially SupportedThe brain and muscles are physiologically similar in their need for rest and recovery.

◐Partially SupportedIt is acceptable in science to acknowledge when a hypothesis is not fully supported by data or when there are weaknesses in the evidence.

◐Partially SupportedThe brain readily merges visual and auditory information when it makes sense, such as when lip movements align with perceived sounds.

◐Partially SupportedMelodies, such as the ABCs, are easier to remember when presented in a musical format compared to simply reciting letters.

◐Partially SupportedSome individuals struggle with focus due to not identifying or filling the necessary sensory space for concentration.

◐Partially SupportedThe superior colliculus is involved in integrating visual and auditory spatial information.

◐Partially SupportedHearing lacks occlusion cues for depth perception because sound can travel around objects.

◐Partially SupportedThe brain likely employs a precisely timed volume control mechanism that adjusts with each word spoken to manage the volume of one's own voice.

◐Partially SupportedBinaural beats may improve focus by filling the auditory sensory space.

◐Partially SupportedThe amplification of all sounds by hearing aids without replacing normal ear or brain function is a problem.

◐Partially SupportedWhen listening to music while working, it should either be familiar to the point of not grabbing attention, or instrumental without lyrics to avoid language intrusion.

◐Partially SupportedMost red-green colorblind individuals perceive red and green as an orangish, burnt brown-orange color and map both colors onto yellow in color matching experiments.

◐Partially SupportedMany people who believe they have ADHD may be unable to concentrate due to insufficient limitation of sensory inputs and context to enter a flow state.

◐Partially SupportedCertain frequencies of sound, like gongs, can shape emotional states.

◐Partially SupportedThe vestibular system's falling reflex is crucial for bracing oneself and reducing the risk of death from falls.

◐Partially SupportedActivities with a seamless on-ramp to attention and no defined endpoint can lead to excessive engagement.

◐Partially SupportedIt is difficult for individuals, even those with large vocabularies, to generate a word completely unrelated to a given topic.

◐Partially SupportedBrain states are highly context-dependent, particularly in the modern era with constant information bombardment from phones.

◐Partially SupportedApproximately 80% of people will experience hearing loss at some point in their lives.

◐Partially SupportedSounds without structure, like ocean waves, tend to induce mental drift rather than stillness.

◐Partially SupportedCreating a playlist for a specific project can serve as a cue for working on that project.

◐Partially SupportedEar folds alter sound frequency content, aiding sound localization.

◐Partially SupportedThe vestibular system, responsible for balance, is connected to the cochlea.

◐Partially SupportedHigh-frequency movement and sound tend to be associated with each other.

◐Partially SupportedHypnosis is a state of hyperfocus.

◐Partially SupportedThe brain can remap visual and auditory worlds in milliseconds to integrate sensory information, such as looking up to locate a sound source.

◐Partially SupportedUsing noise-canceling headphones at low volume can mitigate hearing loss in loud environments.

◐Partially SupportedHumans tend to lose high-frequency hearing before low-frequency hearing.

◐Partially SupportedThe visual system initially evolved to detect light and dark, enabling basic safety.

◐Partially SupportedApproximately 6% of the population is red-green colorblind.

◐Partially SupportedBone conduction headphones can be used to keep ears open for hearing external sounds, which can be safer when exercising in environments with potential hazards.

◐Partially SupportedHaving a satellite communicator on a rafting trip can increase relaxation by providing a sense of security.

◐Partially SupportedHigh levels of adrenaline can improve focus, but excessive levels lead to discombobulation.

◐Partially SupportedAugmenting acetylcholine levels can improve attention, and acetylcholine-releasing neurons from forebrain structures are necessary but not sufficient for establishing an attentional spotlight.

◐Partially SupportedThe physical environment shapes brain function, and individuals have control over their internal environment.

◐Partially SupportedThe brain can process sound separations far smaller than the difference between left and right.

◐Partially SupportedMultisensory integration is a core mechanism underlying thinking, working, and focus.

◐Partially SupportedStrong cues to stay focused within a specific environment can cause distractions like social media to fall away.

◐Partially SupportedSound localization relies on the differential arrival times and intensities of sound at each ear.

◐Partially SupportedThe brain can quickly shift the perceived source of sound to match visual cues.

◐Partially SupportedThe brain can process sensory information that arrives faster than the duration of a single action potential.

◐Partially SupportedThe head casts an acoustic shadow, reducing sound intensity at the ear further away from the sound source.

◐Partially SupportedCertain sound frequencies, such as white noise, may provide cognitive enhancement or focus enhancement.

◐Partially SupportedSilence is generally the optimal auditory input for focus.

◐Partially SupportedHearing loss in one ear makes sound localization difficult.

◐Partially SupportedThinking may involve running simulations of sensory and motor experiences using the brain's sensory-motor infrastructure.

◐Partially SupportedA stable brain state, characterized by being well-rested, hydrated, caffeinated, and free from basic needs, is like a ball bearing on a flat, stable surface.

◐Partially SupportedThe position of the eyes can influence auditory perception, and auditory perception can direct head and eye movements.

◐Partially SupportedHeadphones loud enough for others to hear can cause permanent hearing damage.

◐Partially SupportedCognition can be considered in terms of endurance and interval training, similar to physical exercise.

◐Partially SupportedTop-down control mechanisms exist for vision, including blinking, eye movements, and focusing the lens.

◐Partially SupportedAttention tends to follow vision.

◐Partially SupportedVision drives brain states.

◐Partially SupportedCreating a dedicated physical space free from devices is important for focus.

◐Partially SupportedExcessive focus on small, enclosed spaces may contribute to attentional exhaustion.

◐Partially SupportedBantam mealworm chicken eggs are half the size of standard supermarket eggs and are very tasty.

◐Partially SupportedAcetylcholine is a finite resource that can be depleted with use and replenished during sleep.

◐Partially SupportedThinking about a cat may involve the brain running simulations in different sensory cortices.

?Limited ResearchDescending connections from the brain to the retina are not well understood but may be suited for broad signals like circadian influence rather than fine spatial detail.

◐Partially SupportedEight bantam mealworm eggs are equivalent to a standard two-egg omelette.

◐Partially SupportedWorking in an environment free of phones and internet can improve focus after an initial period of distraction.

◐Partially SupportedThe ability to quickly recall specific sensory details and associated qualities suggests a rich simulation process during thought.