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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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Tools for Managing Stress & Anxiety | Huberman Lab Essentials — Whalespan

Content›Video›Tools for Managing Stress & …

Tools for Managing Stress & Anxiety | Huberman Lab Essentials

Andrew Huberman32m · 2025-01-16

Claims Made

51

Claims Supported

34

Support Rate

67%

Support rate

34 of 51 claims supported

34 supported17 partial / not

Claims from this content

41

✓Well SupportedThe second inhale during cyclic sighing helps reinflate collapsed alveoli in the lungs.✓Well SupportedA physiological sigh, performed once or repeatedly over five minutes, is an effective method for reducing stress in real-time and around the clock.✓Well Supported100 to 400 milligrams of theanine can help many people fall asleep, sleep deeply, feel refreshed, and avoid grogginess.✓Well SupportedPracticing staying calm mentally during heightened alertness activities can enhance behavioral control.Well Supported

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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.

✓

Short-term stress primes the immune system to combat infection and prepares the body for fighting stressors.

✕Not SupportedSupplementing melatonin at typical doses is not recommended due to potentially negative effects on the reproductive axis and hormones.

✓Well SupportedAdrenaline release from stressors like cold exposure or hyperventilation can help combat infections.

◐Partially SupportedEmphasizing the exhale in breathing exercises, such as a double inhale with a long exhale, is an effective way to calm down quickly.

◐Partially SupportedSocial connection, including attachments to pets, friends, or family, can mitigate the negative effects of chronic stress.

✓Well SupportedAshwagandha can lower anxiety and cortisol, which is beneficial for mitigating the long-term effects of stress.

◐Partially SupportedTo increase heart rate, inhale longer or more vigorously than exhales.

◐Partially SupportedAshwagandha is recommended for use during periods of particularly high stress, rather than on a regular year-round basis, to manage short and medium-term stress.

◐Partially SupportedA specific breathing protocol involving repeated cycles of deep inhales and exhales followed by breath holds reduced symptoms when participants were injected with endotoxin.

◐Partially SupportedExperiencing a crash in adrenaline response and immune function can lead to getting sick when transitioning from periods of high stress to relaxation or vacation.

◐Partially SupportedThe body's stress response is generic and does not distinguish between psychological and physical stressors.

◐Partially SupportedAdrenaline release during the stress response mobilizes immune killer cells and interacts with the lymphatic system to combat infection.

✓Well SupportedL-theanine reduces inflammation, stress, and anxiety.

◐Partially SupportedThe stress response prioritizes immediate survival actions and downregulates non-essential functions.

◐Partially SupportedFeelings of comfort, trust, bliss, and delight are physiological indicators of serotonin system activity.

◐Partially SupportedPracticing the dissociation of the mental or emotional response from the body's state of activation, by increasing bodily activation and then calming the mind, can make higher activation states feel manageable over time.

◐Partially SupportedSerotonin release in the brain due to social connection reinforces neural connections, preventing long-term degradation.

◐Partially SupportedDeliberately widening gaze from tunnel vision to panoramic vision while the body is in a heightened state of activation can create a calming effect on the mind by releasing a brainstem circuit associated with alertness and stress.

◐Partially SupportedInability to achieve good sleep indicates a transition from acute to chronic stress.

◐Partially SupportedRepeating the physiological sigh may take 20-30 seconds to reduce heart rate to baseline.

◐Partially SupportedThe stress response system is a generalized mechanism designed to mobilize other systems in the brain and body.

◐Partially SupportedThe phrenic nerve controls the diaphragm, allowing voluntary control over breathing.

◐Partially SupportedThe acute stress response involves activation of the sympathetic chain ganglia.

◐Partially SupportedThe diaphragm can be voluntarily manipulated to perform double or triple inhales and longer exhales, influencing physiological responses.

◐Partially SupportedDuring acute stress, epinephrine activates beta receptors, causing vasodilation in muscles and the heart.

◐Partially SupportedThe parasympathetic nervous system, particularly cranial nerves in the brainstem and neck, directly influences facial features such as eye movements and pupil dilation.

◐Partially SupportedThe stress response is based on hardwired biological mechanisms including cells, chemicals, pathways, and tissues, allowing for its control without requiring neuroplasticity.

◐Partially SupportedActivating the parasympathetic nervous system is the most effective strategy to reduce the magnitude of the stress response.

✕Not SupportedDeliberate hyperventilation cycles followed by breath holds should not be done near water due to the risk of passing out and drowning, and individuals with glaucoma or eye pressure concerns should avoid breath holds.

◐Partially SupportedMelatonin initiates sleep but does not aid in staying asleep.

✕Not SupportedChronic stress elevated for months or years is a significant risk factor for heart disease.

◐Partially SupportedSocial connection is a key mechanism for mitigating long-term stress.

◐Partially SupportedCyclic hyper-oxygenation breathing and cold showers can be used to deliberately increase adrenaline and combat feelings of being run down or susceptible to infection.

◐Partially SupportedDeliberate hyperventilation, such as the Wim Hof breathing method, can liberate adrenaline from the adrenal glands.

◐Partially SupportedMedium-term stress can be managed by raising one's stress threshold through cognitive regulation of bodily responses and becoming comfortable with adrenaline release.

◐Partially SupportedSerotonin release upon seeing trusted individuals contributes to well-being and prevents long-term neural decline.

◐Partially SupportedShort-term stress can enhance cognition by sharpening focus, activating specific brain areas, and allowing for detailed environmental and task analysis.