Experts Sleep Tim Ferriss

Tim Ferriss · 14 episodes · 247 sourced insights

What Tim Ferriss says about sleep

Everything Tim Ferriss and guests said about sleep across 14 episodes — each point linked to the exact second on YouTube. Sourced expert opinion, not medical advice.

In their own words

Huberman says he has doubled down on five foundational categories that must be re-upped every 24 hours: sleep, nutrients (macro and micro), movement, light (especially morning sunlight), and relationships.
00:05:08Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
He reversed his belief that you cannot train for endurance and strength at once; the data on concurrent training convinced him you can pursue multiple adaptations simultaneously, so he rebuilt his program to target one specific adaptation each day.
00:22:50Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
He details his full weekly split: Sunday endurance hike/jog, Monday legs, Tuesday sauna/cold plunge recovery, Wednesday cardio or torso, Thursday torso or cardio, Friday short VO2 max work, Saturday smaller muscle groups.
00:24:34Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Tibialis (tib) raises, learned from Ben Patrick (Knees Over Toes Guy), eliminated his right-side sciatica, fixed shin splints, and let him run pain-free; he also discovered he never actually had flat feet, just weak tibs.
00:33:01Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Dedicated neck training improved his posture, eye contact, confidence, and injury resilience; he does it lying on a bench and stomach with a towel-wrapped plate.
00:50:39Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
His sleep stack remains magnesium threonate, theanine, and apigenin, with added myo-inositol (900 mg) to help fall back asleep; if forced to pick two, he chooses magnesium threonate and apigenin.
01:15:41Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Rhodiola rosea (200 mg pre-workout) is his standout recent performance addition because it reduces perceived effort and post-exercise energy crash without suppressing cortisol, unlike Ashwagandha.
01:36:34Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Huberman has been monitoring sperm parameters and freezing sperm, and credits Ferriss with the idea that optimizing for fertility is a proxy for optimizing overall vitality.
01:44:32Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
The circuits devoted to movement plus those devoted to vision make up roughly 75 percent of the human brain.
00:21:12Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
After about 25-30 minutes of repetitive exercise, central pattern generators engage so the movement becomes near-automatic, like an autopilot button appearing on the steering wheel.
00:28:43Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Protein synthesis peaks around 48 hours after a resistance workout but is held for additional days, so a muscle group does not need to be hit every 48 hours.
00:59:29Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Charles Poliquin's caution: resistance training beyond 60 minutes raises cortisol, harming sleep and recovery, so Huberman keeps lifts to an hour or less.
01:02:43Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
A University of Houston study found 'soleus pushups' (seated calf raises) done while sitting significantly improved insulin sensitivity and glucose uptake.
01:10:48Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
The soleus is about 1 percent of body musculature but can account for over 15 percent of daytime energy expenditure.
01:11:54Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Gulping fluid signals the bladder to urgently urinate, so sip your last evening drink, but gulp large amounts of water first thing in the morning when the kidney functions differently.
01:18:23Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Morning light raises cortisol about 50 percent above baseline; late-shifted cortisol is associated with depression and immune disruption.
01:21:03Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
Neuropod cells in the gut signal sugar, fatty acids, and amino acids via the vagus nerve to the brain's dopamine centers, driving cravings and satiety.
01:29:06Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
An Israeli study found 20 minutes of afternoon sun on bare skin three times a week significantly increased free testosterone, estrogen, and libido; the skin acts as an endocrine organ via the P53 pathway.
01:53:41Dr. Andrew Huberman · The Tim Ferriss Show · Mar 2023
In the staring-detection study, Wiseman's skeptic-run trials showed no effect while believer colleague Marilyn Schlitz's trials did - a clear experimenter effect; larger replications produced complete null results.
00:06:13Richard Wiseman · The Tim Ferriss Show · May 2022
Parapsychology, specifically Daryl Bem's precognition study that failed to replicate, became the bizarre catalyst for the entire replication-crisis movement now improving mainstream psychology.
00:06:44Richard Wiseman · The Tim Ferriss Show · May 2022
In Wiseman's first mass participation lie-detection experiment with 30,000 callers, people watching video detected lies at chance (50%), but accuracy jumped to 61-70% when they only read transcripts or heard audio.
00:25:52Richard Wiseman · The Tim Ferriss Show · May 2022
Wiseman experimentally tested the NLP claim that eye direction reveals lying, using both staged thefts and real police missing-person press conferences - it showed no validity at all.
00:32:41Richard Wiseman · The Tim Ferriss Show · May 2022
The widely cited Yale/Harvard goal study (3% with written goals later out-earning the other 97% combined) was never actually run - it is a complete myth spread through self-help books and the web.
01:15:42Richard Wiseman · The Tim Ferriss Show · May 2022
With suggestion, about 40-50% of people will swear they saw a bent key continue bending or a seance table levitate, demonstrating how malleable memory and observation are.
01:21:58Richard Wiseman · The Tim Ferriss Show · May 2022
The Apollo mission controllers averaged about 21 years old at start and 28 when Armstrong walked on the moon - mostly first-in-family university students from rural backgrounds, chosen for passion and teamwork.
01:31:12Richard Wiseman · The Tim Ferriss Show · May 2022
Most psychics, mediums, and remote viewers are not consciously faking; they fool themselves via confirmation bias and treating creative pattern-matching of dreams or guesses as genuine ability.
00:43:00Richard Wiseman · The Tim Ferriss Show · May 2022
Wiseman is a member of the Inner Magic Circle, an elite group of only about 300 magicians worldwide, and performed at the Magic Castle in Hollywood as a teenager.
00:09:52Richard Wiseman · The Tim Ferriss Show · May 2022
His Laugh Lab study to find the world's funniest joke drew about a million participants and required a full-time employee to remove rude jokes, who amassed a compilation of 40,000 disgusting ones.
00:29:31Richard Wiseman · The Tim Ferriss Show · May 2022
Wiseman ran what he believes was the first social-media psychology experiment - a remote viewing study on Twitter where followers tried to guess his location (they couldn't).
00:47:14Richard Wiseman · The Tim Ferriss Show · May 2022
Wiseman suffered from night terrors and joked you can fake one to make a partner get up; he later learned night terrors fade in a cold room and when anxiety is reduced.
00:55:30Richard Wiseman · The Tim Ferriss Show · May 2022
Getting children (and adults) to re-visualize a recurring nightmare with a positive ending has roughly a 90% success rate at reducing it within a short period.
01:00:43Richard Wiseman · The Tim Ferriss Show · May 2022
A paradoxical insomnia technique: actively try to keep your eyes open and stay awake, which exhausts you and makes you fall asleep faster.
01:01:13Richard Wiseman · The Tim Ferriss Show · May 2022
The 'world's funniest joke' Wiseman's study produced involves two hunters in a wood; he refuses to tell it on air due to social pressure to laugh, pointing people to the web instead.
01:11:33Richard Wiseman · The Tim Ferriss Show · May 2022
Wiseman's 'luck diary' is based on habituation research - recording one daily gratitude or positive item resets attention and gradually shifts people's self-identity toward being luckier.
01:08:26Richard Wiseman · The Tim Ferriss Show · May 2022
A door-knocker on Wiseman's shelf is an expensive magic prop that knocks on its own, which he uses to convince visiting children his old house is haunted.
01:33:49Richard Wiseman · The Tim Ferriss Show · May 2022
A veteran performer keeps shows fresh by standing in the wings imagining the day he can no longer perform, letting the sadness sink in, then saying 'it's not tonight though' before going on.
01:44:47Richard Wiseman · The Tim Ferriss Show · May 2022
Huberman recommends everyone view sunlight for two to ten minutes every morning upon waking to trigger a healthy cortisol pulse and set timers for both wakefulness and later melatonin/sleepiness.
00:16:35Andrew Huberman · The Tim Ferriss Show · Jul 2021
His preferred sleep cocktail is 50mg apigenin, 300-400mg magnesium threonate or bisglycinate, and 200-400mg theanine taken about 30 minutes before bed, paired with morning light.
00:36:20Andrew Huberman · The Tim Ferriss Show · Jul 2021
He avoids melatonin because it suppresses the reproductive/sex-steroid axis and most supplements contain 10 to 1,000 times natural physiological levels.
00:32:08Andrew Huberman · The Tim Ferriss Show · Jul 2021
The physiological sigh - a double inhale followed by an extended exhale - offloads carbon dioxide and brings stress levels down very fast in real time, often after just one to three repetitions.
00:48:53Andrew Huberman · The Tim Ferriss Show · Jul 2021
A 20-minute non-sleep deep rest (NSDR) protocol after intense learning accelerates neuroplasticity by about 50 percent, per two recent Cell Reports papers.
00:46:20Andrew Huberman · The Tim Ferriss Show · Jul 2021
Huberman recounts a July 4, 1994 street fight at age 19 that became the turning point flipping him from a struggling, depressed dropout-track student toward neuroscience and academia.
01:08:26Andrew Huberman · The Tim Ferriss Show · Jul 2021
He reveals he has done therapy with the same individual for 32 years, currently three sessions a week of psychoanalysis.
01:24:53Andrew Huberman · The Tim Ferriss Show · Jul 2021
For testosterone, he uses 400mg/day Tongkat Ali and roughly 425mg Fadogia agrestis, which together raised his total testosterone by about 200 points without down-regulating LH.
02:00:35Andrew Huberman · The Tim Ferriss Show · Jul 2021
The eyes are literally two pieces of brain squeezed out during early development - the only parts of the central nervous system outside the cranial vault.
00:06:41Andrew Huberman · The Tim Ferriss Show · Jul 2021
Ideal morning light exposure is about 14 to 16 hours before you want to sleep, and your 'temperature minimum' (about two hours before natural waking) is the anchor point for shifting the circadian clock and beating jet lag.
00:24:20Andrew Huberman · The Tim Ferriss Show · Jul 2021
Belladonna ('beautiful woman' in Italian) was historically made into a tincture women put in their eyes to hyper-dilate their pupils because it was considered attractive.
00:14:31Andrew Huberman · The Tim Ferriss Show · Jul 2021
Inhales speed the heart up and exhales slow it down (respiratory sinus arrhythmia), which is the basis of heart rate variability - so emphasizing longer exhales calms the system.
00:50:55Andrew Huberman · The Tim Ferriss Show · Jul 2021
The Spiegel eye-roll test predicts hypnotizability; Tim scored about a 4, very hypnotizable, with eyes rolling back as the lids slowly closed.
00:53:29Andrew Huberman · The Tim Ferriss Show · Jul 2021
Clinical hypnosis shows roughly 60-80% success for smoking cessation, up to 90% improvement for anxiety, and 50-75% reduction in chronic pain in controlled studies.
00:57:05Andrew Huberman · The Tim Ferriss Show · Jul 2021
Turmeric is a fairly potent DHT antagonist; people sensitive to creatine-induced hair loss tend to see their DHT plummet on turmeric.
01:50:41Andrew Huberman · The Tim Ferriss Show · Jul 2021
In a Dominican Republic genetic condition (guevedoces), children appear female at birth then sprout a penis and descend testicles around age 12 due to a DHT surge, revealing 5-alpha reductase's role.
01:55:53Andrew Huberman · The Tim Ferriss Show · Jul 2021
Most people benefit from delaying caffeine 90 minutes to two hours after waking so cortisol can clear residual adenosine and avoid an energy crash.
02:16:44Andrew Huberman · The Tim Ferriss Show · Jul 2021
Gut neurons sensing fat, amino acids, and sugar signal via the vagus nerve and nodose ganglia to trigger dopamine release, making us seek those foods even when the mouth is numbed and regardless of taste.
02:26:34Andrew Huberman · The Tim Ferriss Show · Jul 2021
In a sleep-lab study, participants spent 94% more time awake in the last four hours of the night after drinking alcohol versus a sober placebo night, even though they didn't remember the awakenings.
00:12:41Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Alcohol is one of the most potent suppressors of REM sleep, which Walker links to learning, memory, mood regulation, hormone recalibration, and even longevity.
00:13:13Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Atul Gawande's best career advice was 'say yes until you're 40, then after 40 say no' so you build a sample size of what energizes you before specializing.
00:26:32Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Gawande explains coaching: even Itzhak Perlman lacked a violin coach, but his wife became one by observing performances; effective coaching gives an external view oriented around goals you set.
00:33:39Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Diana Chapman breaks down the drama triangle's three victimhood roles: the pure victim, the villain (who blames), and the hero/rescuer (who seeks temporary relief), all rooted in 'I'm right, you're wrong.'
00:44:04Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
David Goggins argues excuses are the real barrier: 'If you want it bad enough you will figure out how to make this happen.'
01:05:28Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Goggins describes the 'accountability mirror' he started at 16, telling himself harsh truths in the mirror daily to fix his flaws rather than accept false positive feedback.
01:08:36Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Caffeine has a half-life of about five to six hours and a quarter-life of 10-12 hours, so a 2pm coffee leaves nearly a quarter of the caffeine in your system at midnight.
00:18:27Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Caffeine sensitivity is genetic, governed by cytochrome p450 enzymes; the two most relevant genes are CYP1A2 and AHR, and Walker tested as a slow metabolizer.
00:22:07Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Walker jokes that falling asleep during his sleep podcast is the highest compliment, since sleep consolidates memory.
00:25:43Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Gawande describes the 'rubber band theory of leadership': pull far enough ahead that people follow, but not so far you break the band.
00:37:17Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
To curb his habit of interrupting people, Gawande paid $10 into a candy jar every time he interrupted, aiming for an empty jar.
00:37:47Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Gawande's maxim: 'The culture of an organization is the worst behavior you tolerate.'
00:39:23Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Badwater is a 135-mile non-stop race across Death Valley up Mount Whitney, with 14,000 feet of elevation gain and temperatures over 120F.
01:03:23Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Goggins overcame asthma, sickle cell anemia, obesity, abuse, and a congenital heart defect, sometimes competing at roughly 25% of normal physical capability.
01:02:53Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
The Goggins clip is from 2017 and is believed to be David Goggins' very first podcast interview ever.
01:01:49Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Gawande brought a fellow surgeon, Bob Osteen, into his operating room as a coach, and reviews deaths and major complications every Wednesday morning.
00:35:11Compilation (multiple guests) · The Tim Ferriss Show · Oct 2022
Nestor says the population of kids with sleep-disordered breathing and the population diagnosed with ADHD almost completely intersect, and argues ADHD is mostly a breathing problem rather than a neurological condition, yet kids are never assessed for breathing or sleep before being medicated.
00:17:42James Nestor · The Tim Ferriss Show · Sep 2025
He claims 50% of people given a CPAP stop using it within 8 weeks, and many who keep using it actually have worse breathing, so it is not a good solution.
00:21:18James Nestor · The Tim Ferriss Show · Sep 2025
Tripling indoor CO2 to around 1,500 parts per million can drop certain cognitive test scores in schools by about 50%, with headaches and migraines appearing around 2,500 ppm.
00:29:36James Nestor · The Tim Ferriss Show · Sep 2025
Nestor has never recorded a single flight anywhere on Earth where CO2 stayed under the recommended 1,000 ppm, and says airplanes run around 2,500 ppm, which is why people feel drained after flights.
00:31:14James Nestor · The Tim Ferriss Show · Sep 2025
The most expensive green- and LEED-certified hotels he tested had by far the worst air quality, with one reading 2,800 ppm on waking, because they recirculate air to save on heating and cooling costs.
00:32:46James Nestor · The Tim Ferriss Show · Sep 2025
Elite trainers say breathing is now the number one thing they focus on for athletes, and most athletes breathe into the chest rather than engaging the diaphragm, making them as dysfunctional as everyone else.
00:53:42James Nestor · The Tim Ferriss Show · Sep 2025
Italian research on prayer (the Buddhist om mani padme hum chant, a kundalini chant, and the Catholic rosary) found all required roughly 5-6 second exhales and inhales, producing a state of coherence now known as coherent breathing.
01:32:09James Nestor · The Tim Ferriss Show · Sep 2025
Nestor states roughly 90% of people on the planet suffer from some form of breathing dysfunction, and the most helpful thing anyone can do is simply become a normal breather before pursuing hardcore breath work.
01:34:45James Nestor · The Tim Ferriss Show · Sep 2025
Maurice Daubard, a French breath-work pioneer who predated Wim Hof, was slated for lung surgery as a sick child but rehabilitated himself with yoga breathing in the 1950s and lived to 93.
00:02:37James Nestor · The Tim Ferriss Show · Sep 2025
At 71 Daubard toured the Himalayas by bike at 5,000m elevation, sat in ice water for 55 minutes, and ran 150 miles in the Sahara.
00:04:08James Nestor · The Tim Ferriss Show · Sep 2025
The first breath work Nestor tried, which still blew his socks off and soaked him with sweat, was Sudarshan Kriya through the Art of Living.
00:11:27James Nestor · The Tim Ferriss Show · Sep 2025
Tim Ferriss recounts a 9-minute breath hold achieved after a 10-day water fast and inside a hyperbaric chamber at 2.4 atmospheres of pressure.
00:15:06James Nestor · The Tim Ferriss Show · Sep 2025
Free phone apps called Snorelab and Snore Clock record nighttime breathing audio and produce a sleep score as a cheap first screen for breathing problems.
00:22:18James Nestor · The Tim Ferriss Show · Sep 2025
Nestor recommends the Aranet4 as the only accurate consumer CO2 monitor, with a 3-4 month battery life, and is building a database of hotel and restaurant air quality.
00:33:50James Nestor · The Tim Ferriss Show · Sep 2025
Nestor's emergency illness supplement pack pairs high-dose vitamin D with vitamins E, A, and extra K2, plus everyday staples like CoQ10 and nattokinase.
00:48:32James Nestor · The Tim Ferriss Show · Sep 2025
The BOLT (Body Oxygen Level Test) is measured by taking three normal nasal breaths then holding after an exhale until the first urge to breathe; it can double in a week or two with practice.
00:55:48James Nestor · The Tim Ferriss Show · Sep 2025
Email apnea, the habit of holding your breath while focused on screens, was researched by the NIH over about 20 years and can raise blood pressure and cause headaches.
01:04:42James Nestor · The Tim Ferriss Show · Sep 2025
Nestor's first draft of Breath was 290,000 words and had to be cut to 85,000, with the through-line becoming a 20-day Stanford experiment where he was a mouth breather for 10 days then a nasal breather for 10.
01:25:24James Nestor · The Tim Ferriss Show · Sep 2025
Tim candidly admits that for the past several months he has had constant thoughts about the meaninglessness of life and significant angst around death, and shares his plan to reboot via rereading Frankl and biographies of people who found meaning.
00:14:36Tim Ferriss · The Tim Ferriss Show · Jun 2021
Tim reveals he is no longer hesitating about having children and is actively seeing fertility doctors, going through the 'pre-flight checklist'; his past hesitation stemmed from doubts about being a good father and a genetic predisposition to depression.
00:31:47Tim Ferriss · The Tim Ferriss Show · Jun 2021
On self-compassion versus grinding, Tim argues there are counter-examples of friends with outsized financial success who were not self-flagellating, concluding self-compassion carries very little downside even in your 20s and 30s.
00:39:06Tim Ferriss · The Tim Ferriss Show · Jun 2021
Tim shares his 'jacket/smoking jacket' analogy: meditation and therapy don't make you lose your edge; you simply learn to take the edge off and put it back on when genuinely needed, as he did to handle a stalker threatening his family.
00:41:39Tim Ferriss · The Tim Ferriss Show · Jun 2021
Tim breaks down 'ontological shock' (a term he first heard from Roland Griffiths), explaining how a single mystical or trauma-surfacing experience can take weeks, months, or years to reconcile with ordinary reality.
00:47:52Tim Ferriss · The Tim Ferriss Show · Jun 2021
On the fear of being misunderstood, Tim offers the reframe that we dramatically overestimate how much others think about us, since everyone is the lead actor in their own 'me me me movie.'
01:05:29Tim Ferriss · The Tim Ferriss Show · Jun 2021
Tim's morning routine starts with 20 minutes of meditation (often transcendental meditation), then Pique tea or coffee, often with Four Sigmatic mushroom coffee and Laird superfood creamer.
00:06:54Tim Ferriss · The Tim Ferriss Show · Jun 2021
He organizes his week thematically, batching activities like phone calls into dedicated days (e.g., Tuesdays) rather than spreading them across every day.
00:07:55Tim Ferriss · The Tim Ferriss Show · Jun 2021
His exercise routine includes acro yoga twice a week (started in quarantine via Zoom with instructor Jason Nemer), climbing twice a week, weight training 1-2 times, and substantial daily walking.
00:08:26Tim Ferriss · The Tim Ferriss Show · Jun 2021
Holotropic breathwork was created by psychiatrist Stan Grof as an alternative to psychedelics after they were made illegal; 'holotropic' means turning toward wholeness.
00:18:46Tim Ferriss · The Tim Ferriss Show · Jun 2021
Tim warns that legitimate well-trained indigenous practitioners essentially never call themselves 'shamans'; self-described shamans are a red flag.
00:21:22Tim Ferriss · The Tim Ferriss Show · Jun 2021
For joint pain he uses Kelly Starrett's Voodoo Floss and contrast therapy via a chest freezer converted into a cold plunge (he warns to unplug it first to avoid electrocution).
00:23:25Tim Ferriss · The Tim Ferriss Show · Jun 2021
Tim notes that doing intense breathwork (like Wim Hof or holotropic) after a psychedelic dose can have a multiplicative effect, making 50 micrograms of LSD subjectively feel like 100-200.
00:30:44Tim Ferriss · The Tim Ferriss Show · Jun 2021
He is back on the slow-carb diet and still aims for a 72-hour water fast once per month plus at least one week-long fast per year.
00:44:14Tim Ferriss · The Tim Ferriss Show · Jun 2021
Tim reads roughly three to five hours per week, typically before bed for 30-60 minutes, significantly more when traveling.
01:00:50Tim Ferriss · The Tim Ferriss Show · Jun 2021
For sleep he uses California poppy, magnesium L-threonate, the Oura ring for tracking, and an Eight Sleep bed cover, noting caffeine's quarter-life is about 12 hours.
01:10:41Tim Ferriss · The Tim Ferriss Show · Jun 2021
People sleeping six hours or less across their lifespan show significantly higher buildup of toxic beta amyloid and tau protein, the two proteins driving Alzheimer's disease.
00:03:17Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
University of Rochester scientist Maiken Nedergaard discovered the brain's 'glymphatic' cleansing system, which kicks into high gear during deep non-REM sleep to wash away beta amyloid and tau.
00:06:35Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
A vicious cycle exists: the brain regions attacked earliest by Alzheimer's are the same regions that generate deep sleep, so less sleep means more buildup, which means even less deep sleep.
00:09:52Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
A single cup of coffee in the evening drops deep sleep by about 30 percent, the equivalent of aging someone roughly 12 to 14 years.
00:56:00Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
Coffee's health benefits come from antioxidants (polyphenols like chlorogenic acid), not caffeine, which is why decaffeinated coffee retains the same benefits.
00:59:44Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
THC-related insomnia on withdrawal is so reliable it is part of the DSM diagnostic criteria for cannabis withdrawal; THC also reduces, delays, and lessens the intensity of REM sleep.
01:13:15Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
Restricting sleep to four-to-five hours drops the satiety hormone leptin by about 18 percent while raising the hunger hormone ghrelin by about 28 percent, plus elevating appetite-driving endocannabinoids.
02:02:26Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
A meta-analysis of 11 RCTs found trazodone increases deep non-REM sleep without coming at the cost of REM sleep, with benefits persisting up to a month without clear tolerance buildup.
02:38:29Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
A meta-analysis of over 27 studies found people with lifetime sleep problems were about 3.78 times more likely to develop early-stage Alzheimer's prematurely.
00:03:50Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
Decline in deep sleep begins in the mid-to-late 30s, with men declining earlier than women, though women decline more severely later in life.
00:14:06Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
The 'warm bath effect': a hot bath before bed dilates blood vessels and pulls heat to the skin, dropping core body temperature to reliably increase deep sleep.
00:42:55Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
Caffeine has a half-life of five to six hours and a quarter-life of roughly 10 to 12 hours, so a 1-2pm coffee leaves a quarter of the dose circulating at midnight.
00:54:30Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
Lighter coffee roasts contain more caffeine per gram than darker roasts because longer roasting degrades and lightens the bean.
01:04:02Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
The first written account of cannabis (hemp resin) for sleep came from British physician Dr. Clendinning in monographs around 1843.
01:08:58Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
CBD shows a bimodal/U-shaped dose response: below ~25mg it can be wake-promoting and alerting, while ~50mg or above may be sleep-inducing.
01:20:34Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
A University of Geneva study suspended a bed on chains and rocked it laterally at slow-brainwave frequency, increasing deep sleep, sleep spindles, and next-day memory.
01:34:42Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
Staying awake all night burns only about 140 extra calories, yet sleep-deprived people overeat by roughly 300 to 600 calories.
02:13:25Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
During Ramadan-style fasting, melatonin peaks drop about 20 percent and arrive hours later, total sleep falls by about an hour, and REM sleep takes the biggest hit.
02:18:05Dr. Matthew Walker · The Tim Ferriss Show · Jan 2023
Ferriss details the Huberman-inspired sleep stack he adopted: at least 1g EPA fish oil in divided doses, magnesium threonate and apigenin before bed, morning sunlight within minutes of waking, and delaying caffeine 60-90 minutes after rising.
00:04:29Tim Ferriss · The Tim Ferriss Show · Dec 2021
Breaking news he inserted post-recording: Dr. Matthew Johnson at Johns Hopkins received a U01 grant from NIDA to study psilocybin for tobacco addiction, the first US government grant in half a century to directly study a classic psychedelic.
00:32:08Tim Ferriss · The Tim Ferriss Show · Dec 2021
Asked what he'd teach his future kids, Ferriss says optimism and resilience, arguing that building confidence comes through competence and doing hard, uncomfortable things rather than reasoning your way into it.
00:21:40Tim Ferriss · The Tim Ferriss Show · Dec 2021
On tempering low points, he discloses taking 5mg of low-dose lithium orotate (bought on Amazon) before bed, and 5mg in the morning if slipping, alongside exercise, sun, limiting caffeine, cutting alcohol, and cold exposure.
01:24:37Tim Ferriss · The Tim Ferriss Show · Dec 2021
After moving from San Francisco to Austin, Ferriss says leaving a tech monoculture made him far more reflective, prompting big questions about family, mortality, and which of his drives are genuinely his own.
00:39:22Tim Ferriss · The Tim Ferriss Show · Dec 2021
When asked what he just does willy-nilly, Ferriss admits he frequently says 'f it' to new things like learning to sail or jamming on new musical instruments, deliberately not applying his DSSS framework.
01:36:32Tim Ferriss · The Tim Ferriss Show · Dec 2021
He names acro yoga as the single non-psychedelic somatic modality that created his largest positive shift, citing its effect on his relationship with his partner plus its blend of strength, mobility, and play.
00:23:47Tim Ferriss · The Tim Ferriss Show · Dec 2021
Ferriss says his plantar fasciitis flared from walking in very minimal footwear on cobblestones, and improved partly after a physical therapist told him to stop crossing his feet under his chair and keep them flat.
00:01:19Tim Ferriss · The Tim Ferriss Show · Dec 2021
He explains his DSSS metalearning framework from The 4-Hour Chef: Deconstruction, Selection (80/20), Sequencing, and Stakes, adding that 'material beats method.'
00:12:22Tim Ferriss · The Tim Ferriss Show · Dec 2021
He claims you can reach conversational fluency in most languages in 8-12 weeks by learning the highest-frequency 1,200-2,000 words.
00:13:27Tim Ferriss · The Tim Ferriss Show · Dec 2021
His language-maintenance trick, which a listener identifies as 'laddering,' uses the One Piece manga across languages, reading a known language to reinforce a target language page by page.
00:46:40Tim Ferriss · The Tim Ferriss Show · Dec 2021
For anxiety and worry, he recommends Radical Acceptance by Tara Brach, Internal Family Systems (IFS) therapy, and How to Stop Worrying and Start Living by Dale Carnegie, citing the line 'worrying is like praying for what you don't want.'
00:58:31Tim Ferriss · The Tim Ferriss Show · Dec 2021
He notes Adam Gazzaley's team developed software called Akili that became the first FDA-approved treatment for ADHD delivered as software.
00:36:16Tim Ferriss · The Tim Ferriss Show · Dec 2021
His favorite wrestling movie is the documentary Dan Gable: Competitor Supreme, recounting Gable's near-undefeated record and 7-hours-a-day, 7-days-a-week training for a Munich Olympic gold.
01:29:18Tim Ferriss · The Tim Ferriss Show · Dec 2021
He warns that 5-MeO-DMT, nicknamed 'the businessman's trip' for its 5-15 minute duration, is dramatically more destabilizing than its short length suggests.
01:22:30Tim Ferriss · The Tim Ferriss Show · Dec 2021
A red Eye-of-Sauron-like painting he gets more compliments on than any other artwork was bought for $60 at a warehouse yard sale.
00:58:54Tim Ferriss · The Tim Ferriss Show · Dec 2021
He ends by urging everyone to read Tim Urban's article 'The Tail End' on waitbutwhy.com, which he says he has read about 20 times and reproduced in one of his books.
01:37:02Tim Ferriss · The Tim Ferriss Show · Dec 2021

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