Sebastian Kilichowski claims that artificial blue light from LEDs and screens is the single biggest health disruptor — it independently raises blood sugar and insulin, destroys mitochondrial function, and can rob you of an hour of deep sleep per night (360 hours/year) if not blocked 3 hours before bed.
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He recommends exposing the whole body — including testicles — to natural sunlight to boost testosterone by up to 200% (based on an older study by Dr. Myers) and to set the circadian clock; he personally sunbathes nude in his home office and on walks.
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His own brand, Shield, sells blue‑blocking glasses (Day Shield ~40% block, Night Shield 100% absorbing) and “pro‑sun” glasses; he also advocates seasonal eating (keto/carnivore in winter, more carbs in summer) and uses methylene blue occasionally for mitochondrial energy.
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He dismisses sunscreens as largely useless and harmful, sunglasses as “one of the worst inventions of humanity”, and mainstream dermatology as hypocritical for demonising the sun while selling expensive red‑light treatments.
Protocols
Concrete recipes — what, when, how much, and why
8 items
Morning natural‑light exposure (no phone first)
WhatImmediately after waking, go outside or expose as much skin as possible to natural daylight (not through glass), for at least a few minutes, even on cloudy days, before looking at any screen.
WhenWithin 30 minutes of waking; before touching your phone.
DoseAt least 2–10 minutes; longer if possible. On cloudy days about 30–40% of light still penetrates.
For whomEveryone, especially those with low morning energy or sleep issues.
WhySets the central circadian clock (suprachiasmatic nucleus), boosts morning serotonin and dopamine, and prevents the ‘midday’ signal from a phone that would shift hormone peaks and later impair melatonin production.
CaveatsDoes not work through glass (windows block UV/IR and attenuate light). In winter or at high latitudes, longer exposure may be needed. Avoid staring directly at the sun.
Kilichowski explains that light is the master zeitgeber — our skin, heart, pancreas etc. have no watches and rely on light hitting melanopsin in the eye to synchronise all biological clocks. The 2017 Nobel Prize in Medicine was awarded for circadian rhythm mechanisms. If you grab your phone at 6 a.m., even for a few seconds, the blue light tells your brain it is midday, shifting the entire hormonal cascade — including the morning testosterone and cortisol peak — which he estimates can cumulatively chip away a few percent of your testosterone over time. He therefore insists on natural light first, before any digital device.
Mechanism
Melanopsin‑containing retinal ganglion cells detect blue‑rich light and signal the suprachiasmatic nucleus (SCN), the master clock. The SCN then coordinates peripheral clocks via hormonal and neural pathways. Morning light also triggers a surge in serotonin and dopamine, acting like a ‘vitamin shake’ that no supplement can replicate.
Personal experience
He arranges his home office so that morning eastern light falls on him; he often undresses (when private) to get full‑body exposure. On walks, he wears grounding shoes, combining light exposure with earthing.
first thing go outside into natural light it doesn't work through glass doesn't work through a balcony you have to either open it or go outside even on a cloudy day
Also said
“in the brain we have a so-called central circadian clock that manages everything that happens in our body so it is a kind of conductor”— Clarifies the hierarchical control of all bodily rhythms by the SCN.
“light from the phone at that 6 a.m. is information for our brain that it is the middle of the day”— Quantifies the harm of early phone use specifically.
Evening 100% blue‑light block (3 hours before sleep)
WhatThree hours before bed, eliminate all blue light from screens, LEDs and ambient lighting. Either switch off all electronics or wear glasses that fully absorb blue light (Night Shield). Use only dim red light in the bedroom.
WhenStarting 3 hours before sleep, until morning.
DoseContinuous block for the last 3 hours of wakefulness. The glasses must block and absorb 100% of blue light (not just a coating).
For whomAnyone using screens in the evening, or with difficulty falling/staying asleep, or wanting higher daytime performance.
WhyAny blue light detected by melanopsin prevents the conversion of serotonin to melatonin, fragmenting sleep and reducing deep sleep by about one hour — totalling ~360 hours lost per year. Blue light also stresses mitochondria, causing electron leakage that reduces cellular energy production.
CaveatsStandard ‘blue‑blocking’ glasses that are transparent or have only a coating block far less blue light than claimed; Kilichowski’s brand uses absorptive lens technology. Red lights (e.g. 660 nm bulbs) are the only safe artificial light before bed. Alcohol, caffeine and nicotine also destroy sleep quality.
Kilichowski builds a detailed case: following the 2012 EU ban on incandescent bulbs, LEDs became ubiquitous without safety testing. The French ANSES report confirms wide‑ranging harm. Melanopsin is so sensitive that even a small amount of blue light — e.g., from a Night‑shift‑filtered screen or a brief bathroom light — is enough to block melatonin onset. He cites his own data showing that people without blue‑blocking protection average about 1 hour less deep sleep per night, translating to 360 hours less cerebral and bodily regeneration annually compared to a well‑sleeping competitor. He also ties blue light directly to mitochondrial dysfunction: it stresses the electron transport chain, widening the gaps between complexes I–IV so electrons have farther to ‘quantum tunnel’, causing electron leakage, reduced ATP production, and fatigue even on a perfect diet.
Mechanism
Melanopsin in ipRGCs signals the SCN that it is still daytime, inhibiting pineal melatonin release. Mitochondrial damage: blue light causes conformational changes in the electron transport chain complexes, increasing the distance electrons must travel, leading to electron slippage and reactive oxygen species, lowering ATP output. The mitochondria even use quantum tunnelling (similar to photosynthesis) to achieve near‑perfect energy transfer, which blue light disrupts.
Personal experience
He wears his Night Shield glasses for 3 hours before bed, then powers down all electronics 1 hour before sleep and reads under a 660 nm red bulb. If he occasionally watches a film late, he uses the glasses and may take a passionflower‑based supplement to dampen the stimulation.
three hours before sleep in my opinion 100% of blue light should be blocked
Also said
“if you expose yourself to artificial light before sleep without protection … we average one hour less deep sleep and now imagine … 360 hours less deep sleep”— Quantifies the yearly cost of blue light exposure.
“blue light so stresses our mitochondria that it stretches those complexes meaning electrons have a longer path … and so-called electron leakage can occur … people can eat great stick to a diet and have no energy”— Connects blue light to mitochondrial dysfunction and low energy, even with good nutrition.
Whole‑body sun exposure for testosterone and circadian health
WhatOnce or twice a week, expose as much skin as possible — including the genital area — to natural sunlight for a short period (before burning), ideally in the morning or midday.
WhenWeekly, when weather permits; morning sun is optimal for circadian entrainment, midday gives more UV for vitamin D and hormonal effects.
DoseEnough to feel warmth but before any pinkness; time varies by skin type and season. The 200% testosterone rise study lasted ~4 days, so weekly repetition sustains the boost.
For whomAdults with access to private outdoor space or nudist areas; people with low testosterone or hormonal issues.
WhySunlight on skin and eyes drives circadian regulation, vitamin D synthesis, nitric oxide release, and may dramatically raise testosterone via testicular exposure. For women, it lowers breast cancer risk and improves vaginal microbiome via UV.
CaveatsAvoid burning. Do not wear sunscreen (it blocks UVB and can contain harmful chemicals); build tolerance gradually. Those on a diet high in seed oils may burn faster, so diet improvement should accompany sun exposure. Not recommended to stare at the sun. Public nudity laws vary.
Kilichowski is struck that a promising study by Dr. Myers on sunlight‑induced testosterone increases was never followed up, and suspects commercial conflicts of interest. He extends the logic to women: topless sunbathing reduces breast cancer risk and UV’s bactericidal properties regulate the gut and vaginal flora. He frames sunlight as a ‘free red/infrared therapy’ that dermatology clinics charge for, making the demonisation of the sun a market distortion. He also connects the energy benefits of sun to quantum biology — red and infrared light stimulate the ATPase rotor in mitochondria, essentially turning humans into solar panels that produce ATP more efficiently.
Mechanism
Red and near‑infrared light (600‑850 nm) are absorbed by cytochrome c oxidase in the mitochondrial electron transport chain, accelerating ATP production. UVB converts 7‑dehydrocholesterol to vitamin D3. UV light also has direct antimicrobial effects and may modulate skin and gut microbiomes. The testicular testosterone effect is proposed via photobiomodulation of Leydig cells, though the exact mechanism is not detailed.
Personal experience
He sunbathes nude in his east‑facing home office when sun streams in, making sure no neighbours see him. He also sometimes walks barefoot or with grounding shoes for added earthing.
whole-body exposure including testicles to the sun raises testosterone levels by 200% … at least once a week irradiate your balls in the sun and you would have constantly higher testosterone levels
Also said
“in the case recently in Brazil where eight doctors died … who were supposed to present results on how chemotherapy is harmful … we already know why such studies are not often continued”— Adds his conspiratorial reason for the lack of follow‑up studies on alternative health topics.
Red light evening ritual
WhatAbout 1 hour before sleep, eliminate all electronics and use only a red‑light bulb (660 nm) for illumination in the bedroom; read, brush teeth, or unwind under that light.
When60 minutes before sleep, after already blocking blue light with glasses for the preceding 2 hours.
DoseWhole final hour of wakefulness.
For whomAnyone wanting deeper sleep, especially those who still feel wired before bed.
WhyRed light does not stimulate melanopsin, so it doesn’t hinder melatonin release, and may even support mitochondrial recovery.
CaveatsA simple 660 nm bulb (~59 PLN) is enough; expensive RLT panels (660+850 nm) are not necessary unless desired for skin therapy, but they are too bright to read by.
Kilichowski contrasts cheap red bulbs with multi‑thousand‑złoty RLT panels, making the protocol accessible. He uses it as part of a wind‑down sequence: 3 hours before bed – Night Shield glasses; 1 hour before bed – no screens, just red light and a book. He finds it powerfully reinforces the body’s transition to sleep mode.
Mechanism
Melanopsin has peak sensitivity around 480 nm; 660 nm light is almost invisible to it, so the SCN interprets darkness, allowing pineal melatonin synthesis.
Personal experience
He reads a book under the red light as his nightly ritual and finds it very effective. He also uses the red light to go to the bathroom at night instead of white LEDs.
a red bulb emits light at 660 nanometers and it is perfectly fine … such a little bulb costs 59 PLN
Sleep environment blackout and earplugs
WhatRemove all blinking LEDs and electronics from the bedroom, blackout curtains if outside light intrudes, and use earplugs if traffic or noise is present.
WhenEvery night.
For whomAnyone waking unrefreshed or living in a city.
WhyLight on the skin at night can shallow sleep; even a tiny LED can disrupt circadian signalling. Noise fragments sleep architecture.
CaveatsNo mention of safety concerns with earplugs.
This is part of his broader sleep hygiene alongside diet and temperature. He also advocates for a comfortable, non‑polyester mattress and a well‑fitted pillow to maintain natural spinal curvature.
Mechanism
Skin possesses photosensitive opsins that can detect artificial light and relay stress signals, fragmenting sleep. Auditory stimuli raise cortisol and trigger micro‑arousals.
Personal experience
He installed a red night‑light above his toilet to avoid white light during bathroom visits; built that feature when constructing his home.
all diodes all electronics phone we throw out of the bedroom … if we live near a busy street and you can hear cars at night or other sounds earplugs will be essential
Glycine, zinc, magnesium for deep sleep
WhatEnsure adequate intake of glycine (from bone broth, connective tissue, or supplement), zinc, and magnesium to support deep sleep. If diet is lean or plant‑based, supplementation may be necessary.
WhenWith evening meal or before bed.
DoseNot specified; he mentions buffered forms like magnesium glycinate.
For whomPeople with poor sleep quality, especially those not eating whole‑animal snout‑to‑tail.
WhyGlycine is a crucial amino acid for sleep quality, often lacking in modern diets that avoid gristle, skin and bone broth.
CaveatsHe does not recommend routine melatonin supplementation because if blue light exposure is present, melatonin won’t work and may lose effectiveness; he sees it as a short‑term crutch at best.
Kilichowski ties glycine depletion to the practice of eating only muscle meat. He references a large study where the breast cancer drug tamoxifen did not work in those exposed to blue light with disrupted rhythms, illustrating that even powerful pharmaceuticals are overridden by circadian disruption, so melatonin supplements are no match for light hygiene.
Mechanism
Glycine acts as an inhibitory neurotransmitter in the brainstem and can lower core body temperature, facilitating sleep onset. Zinc and magnesium are cofactors for GABAergic function and melatonin synthesis.
Personal experience
He used his Aura ring to test various forms of magnesium, glycine, and other supplements, built a personalised sleep stack, then stopped tracking daily once optimised.
if in our diet we don't eat meat or we eat meat but more lean we avoid such overgrowths then we 100% have glycine deficiencies … glycine is a very important amino acid that is needed for quality sleep
Post‑sex melatonin boost
WhatEvening sex (with or without ejaculation) accelerates the conversion of serotonin to melatonin, improving sleep onset and quality.
WhenBefore sleep.
For whomAdults in a relationship.
WhyThe neurochemical cascade after sex favours melatonin production, making it a natural sleep aid.
CaveatsHe distinguishes sex from ejaculation; ejaculating too frequently may drain energy, but the act itself can be relaxing and pro‑sleep.
This fits his broader view that natural behaviours like sex can be leveraged instead of supplements. He does not go into deep mechanism but presents it as an observation.
Mechanism
Orgasm releases prolactin and oxytocin, which can promote relaxation; serotonin released during pleasure is then converted to melatonin in the pineal gland under darkness.
after sex there is a faster conversion of serotonin into melatonin and that will definitely be a plus
Methylene blue for cognitive and physical energy
WhatTake methylene blue on days requiring high creativity or focus. It increases oxygen delivery to mitochondria and boosts ATP production.
WhenIn the morning or before a demanding task/gym session.
DoseNot specified; he only mentions occasional use.
For whomBiohackers looking for a cognitive edge; not for daily use.
WhyMethylene blue acts as an electron cycler in the mitochondrial electron transport chain, partially bypassing complex I/III blocks and increasing energy output.
CaveatsNot approved as a supplement in Poland; available only through unofficial channels. He notes he doesn’t believe the literature’s claim of up to 40% energy boost but feels a noticeable improvement in focus and gym performance.
Methylene blue is an old drug (used for malaria and methemoglobinemia) that has gained popularity in biohacking circles for its mitochondrial effects. Kilichowski says it delivers more oxygen to the mitochondria — an oversimplification of its role as an artificial electron acceptor that reduces oxidative stress and improves respiration.
Mechanism
At low doses, methylene blue accepts electrons from NADH and transfers them directly to cytochrome c oxidase (complex IV), bypassing complex I and III, thereby increasing ATP synthesis and reducing superoxide production.
Personal experience
He uses it occasionally on days he needs to be creative or for gym sessions; he pairs it with morning sunlight in summer, saying that sun plus methylene blue is enough to replace other nootropics like Alpha‑GPC or lion’s mane, which he used in the past.
methylene blue delivers more oxygen to the mitochondria and they are more effective at producing energy and there is actually a noticeable subtle better focus more energy
Also said
“at the gym I have better results thanks to it”— Adds physical performance benefit.
What's new
Personal practice updates, fresh positions, predictions
6 items
Artificial blue light raises blood sugar and insulin independently of food
Citing a 400‑page 2019 French ANSES report, Kilichowski states that LED light alone can increase blood glucose and insulin, that prenatal blue‑light exposure affects the foetus, and that this effect is not widely recognised in mainstream medicine.
Why this matters: Flips the script on metabolic disease — light as a metabolic disruptor, not just a sleep issue.
Background
Prior to the 2012 EU ban on incandescent bulbs, artificial light contained significant red and infrared wavelengths; modern LEDs emit blue‑dominant light with virtually no balancing red/IR, creating an unprecedented constant ‘midday’ signal for the body.
Kilichowski argues that the European Union ignored warnings from ANSES and rushed to ban incandescent bulbs in favour of LEDs, launching an uncontrolled mass experiment. He emphasises that the 2019 French report compiled experts from many fields and concluded that LED light is hazardous to humans and animals. He contrasts this with the mainstream message that only UV from the sun is dangerous while screen light is considered safe.
LED light is dangerous for humans for animals that it can raise blood sugar and insulin levels by itself without eating carbohydrates
Also said
“The French health agency released a more than 400-page report … says that LED light is dangerous … that a woman who carries a child inside her exposing herself to blue light already affects that foetus”— Adds that prenatal exposure is already demonstrably harmful.
Sunlight on testicles boosts testosterone by 200%
Old study by Dr. Myers found whole‑body sun exposure, including the genitals, raises testosterone ~200%; the effect returns to baseline after 4 days, so weekly exposure can maintain elevated levels.
Why this matters: Extraordinary claim with a specific magnitude — directly challenges the narrative that sun exposure is carcinogenic and offers a free hormonal intervention.
Background
Most men are told to avoid sun or use sunscreen; the idea that sunlight has a direct, substantial effect on male hormones is absent from official health advice.
Kilichowski is surprised no one has replicated Myers’ study, given the promising results, and speculates that the demonisation of the sun has suppressed follow‑up. He also notes that for women, topless sunbathing reduces breast cancer risk and UV regulates the gut and vaginal microbiome, so public nudity or private sunning is beneficial.
Personal experience
He sunbathes nude in his home office when sunlight streams in, ensuring he is not seen, to get full‑body exposure regularly.
whole-body exposure including testicles to the sun raises testosterone levels by 200% … after days of the last exposure that level returns to baseline … if you at least once a week irradiated your balls in the sun you would have constantly higher testosterone levels
Also said
“I am very surprised that no one continued his work … the results were very promising”— Highlights the gap in research and his own surprise.
Sunglasses are one of the worst inventions and blocking red/infrared is harmful
Kilichowski claims sunglasses cut out health‑promoting red and near‑infrared light, mimicking a permanent cloudy day for the brain and reducing serotonin by a factor of 14, while his own brand offers ‘pro‑sun’ glasses.
Why this matters: Contrarian and provocative — he sells eyewear (blue‑blockers) but also launched a product line that he calls ‘PR słoneczne’, deliberately opposite to sunglasses.
Background
Standard sunglasses are marketed as protective; the expert argues they block the very wavelengths needed for cellular energy production and circadian signalling, turning them into a net negative.
Kilichowski connects the red/infrared part of sunlight to mitochondrial ATP synthesis — he explains that the final step of energy production in mitochondria is accelerated by red and infrared light, so filtering it out is like starving your cells of energy. He also references research showing that exposure to a bright sunny day increases serotonin 14‑fold compared to a cloudy day, and that wearing sunglasses simulates a cloudy‑day signal to the brain.
Personal experience
He says, “I’m a person who released my own sunglasses” (correcting himself — pro‑sun glasses), implying he transformed his perception of sunglasses after learning the science.
In my opinion sunglasses are one of the worst inventions of humanity and this is said by a person who released their own sunglasses
Also said
“by putting on sunglasses you can pretend it's a cloudy day meaning people who have for example worsened mood walk around in sunglasses all the time so for their brain it's always a cloudy rainy day and they basally have em times less serotonin”— Quantifies the serotonin drop and explains mood effects.
Sunscreens are 90% useless, potentially harmful, and the dermatology market is hypocritical
Kilichowski argues that most chemical sunscreens provide little protection against skin cancer, can absorb into the body and breast milk, and that the real driver of sunburn is a diet high in linoleic acid from seed oils.
Why this matters: Directly attacks a massive consumer market and a core public‑health message, linking sun tolerance to diet rather than UV avoidance.
Background
Public health authorities universally recommend sunscreen; the expert points to studies showing six common sunscreen ingredients exceed FDA safety thresholds, remain in blood for 3+ days, and appear in breast milk.
He claims that the dermatology industry is hypocritical because it warns against the sun while selling expensive red‑light and infrared skin treatments — even though the sun emits over 50% red and infrared light for free. He differentiates chemical vs. mineral sunscreens, with zinc oxide (non‑nano) being the least problematic, but ultimately recommends behavioural adaptation (shade, clothing) rather than creams. He also ties susceptibility to sunburn to consumption of refined seed oils (rapeseed, sunflower, soybean), which incorporate linoleic acid into cell membranes and make skin more prone to oxidation.
Personal experience
He does not use sunscreen, even on holiday, but acknowledges that a person with a poor diet and disrupted circadian rhythm going to the equator may need something — in that case he suggests a zinc oxide‑based product.
sunscreens do not protect against skin cancer and basically 90 percent are useless and can even be harmful
Also said
“they tested six sunscreen ingredients and it turned out they absorb so much that they exceed norms … and they remain in women for three days after the last application”— Cites safety data on systemic absorption.
“linoleic acid in too large an amount can incorporate itself into cell membranes and because of that when you expose yourself to the sun you can burn significantly faster”— Introduces diet as the real driver of sunburn risk, shifting blame from UV.
Ejaculation should be limited to ~2 times per month for men aged 25‑37 to preserve energy
Drawing on yogic and Taoist concepts, Kilichowski states that retaining semen boosts testosterone (~40% after 7 days) and preserves ‘creative life energy’ that can be transmuted into business or athletic performance.
Why this matters: Highly specific, prescriptive, and countercultural claim about sexual frequency as a performance enhancer.
Background
Modern culture promotes sexual activity as healthy; ancient traditions often view semen retention as vital for spiritual and physical vigour.
He distinguishes between sex and ejaculation — sex can be a bonding or spiritual act without ejaculation. He notes that modern men are constantly bombarded with sexual imagery on Instagram, more than a medieval king would see in his lifetime, which leads to frequent ejaculation, dopamine desensitisation, procrastination, and a feeling of being drained. He frames 2 ejaculations per month as optimal for men in that age bracket to maintain high energy, while acknowledging that it is a difficult discipline.
Personal experience
He does not explicitly state his own practice, but speaks from the position of someone who follows this philosophy.
withholding … ejaculation for 7 days is well it causes about a 40-something percent increase in such testosterone … a healthy body should … a man 25 plus up to about 37 well two times … maximum two times ejaculation … per month
Also said
“you can transmute that sexual energy into action for example in business or in sport”— Frames semen retention as a productivity tool, not just a health measure.
Seasonal eating: keto/carnivore in winter, more carbs in summer aligns with nature
Kilichowski now cycles his carbohydrate intake by season — ketogenic or carnivore in the colder months, reintroducing seasonal fruits and more carbs in summer — mimicking natural food availability and animal physiology.
Why this matters: Moves beyond the ‘keto always’ or ‘high‑carb always’ dogma to a geographic and seasonal model.
Background
He formerly believed everyone should be on a permanent ketogenic diet, having personally resolved insulin resistance, bloating and low energy with keto.
He argues that in Poland, winter naturally lacks bananas and strawberries, so he eats only animal products then, and his body leans out (drops ~2‑4 kg) and feels better in the cold — the opposite of the typical summer‑cut pattern. He deliberately combines winter ketosis with ice bathing (morsowanie), stating that fat metabolism works well with cold. He does not claim this is the only way, just that it works well for him over two seasons.
Personal experience
He shares his personal transition from strict keto to seasonal keto/carnivore and reports that it is the best he has felt since getting into health.
I steer the level of carbohydrates depending on the season the warmer it is the bigger the solar cycles the more and as we go towards winter I go into keto even into such carnivore … and it works great for me
Also said
“fat cooperates very nicely with cold so I feel great when I go into such ketosis precisely in winter and on top of that I add ice bathing”— Links the seasonal diet to cold exposure synergy.
Recommendations
Products, supplements, and tools mentioned in the episode
6 items
Red bulb 660 nm
Tool
Cheap (~59 PLN) red bulb for pre‑sleep lighting in the bedroom; an accessible alternative to expensive red‑light therapy panels.
Kilichowski uses this bulb for reading and washing up in the last hour before bed. He notes that while RLT panels with 660/850 nm are more comprehensive, they are costly and impractical for reading, so a simple bulb gets the circadian job done.
vs alternatives
Much cheaper than RLT panels (which cost thousands of złoty) and sufficient for circadian signalling, though lacking therapeutic tissue benefits of higher‑powered devices.
Personal experience
He reads with it and finds it effective as part of his wind‑down.
such a little bulb costs 59 PLN … it's nice if in our bedroom there are no blinking diodes … in the bedroom I read a book under red light
Sleep and HRV tracker used temporarily to test the effect of new supplements or routines on deep sleep and heart rate variability.
Kilichowski does not wear it daily because he doesn’t want to become obsessive; he views it as a tool to build a personalised protocol, after which you can put it away. He used it to compare different forms of magnesium and glycine, and to fine‑tune his pre‑sleep routine.
vs alternatives
Not compared to other trackers, but his philosophy is to avoid constant self‑quantification.
Personal experience
He tested various supplements and habits with the ring, constructed his optimal regimen, and now only puts it on again when trying a new adaptogen or supplement for 10–12 days of baseline and 10–12 days of intervention.
I tested various things that I read about on the internet and thanks to that I arranged my personal supplementation scheme and pre-sleep routine so as to achieve the best parameters … then I put it away
Used as a natural multivitamin to replace synthetic vitamin and mineral supplements; 2 tablespoons provide a broad spectrum of bioavailable nutrients.
Kilichowski prefers bee pollen over isolated vitamins because he believes its absorption is superior. He highlights that alongside creatine monohydrate, it is one of the few ‘supplements’ he takes, relying otherwise on whole foods and seasonal eating.
vs alternatives
Compared to synthetic supplements, he claims higher bioavailability and a broader nutrient profile.
Personal experience
He takes it regularly as his primary vitamin source.
all vitamins in supplements I simply replace with bee pollen which is a vitamin bomb … where drinking two tablespoons of bee pollen we can supply ourselves with a multitude of vitamins that have higher absorbability than some very sophisticated supplements
A pattern of eating very low‑carb (keto or carnivore) in autumn/winter and reintroducing seasonal fruits and more carbohydrates in spring/summer, based on local food availability and animal physiology.
After years of strict keto, Kilichowski now cycles carbs annually. He loses 2‑4 kg in winter, gets leaner (opposite of typical), and feels synergy with the cold and ice‑bathing. In summer, he eats Polish seasonal fruits. He does not claim universal superiority, but finds it more natural and effective for his body.
vs alternatives
Less restrictive than year‑round keto; avoids the dogma he used to hold that everyone should be keto always.
Personal experience
He has followed this approach for two seasons and says it is the best he has felt since his health transformation began.
I steer the level of carbohydrates depending on the season the warmer it is the bigger the solar cycles the more and as we go towards winter I go into keto even into such carnivore
Also said
“fat cooperates very nicely with cold so I feel great when I go into such ketosis precisely in winter and on top of that I add ice bathing”— Adds the cold‑exposure synergy element.
Footwear with conductive soles used during morning walks to achieve earthing without going barefoot in public.
Kilichowski tested the conductive properties with a meter to confirm they work, and he wears them to combine grounding with his morning light exposure, avoiding the social awkwardness of walking barefoot on grass in an urban area.
vs alternatives
More convenient and socially acceptable than barefoot grounding; he recommends barefoot when possible.
Personal experience
He wears them on morning walks; sometimes he also goes barefoot when privacy allows.
I have such grounding shoes … I know they work because I tested them with a meter and to walk on the grass rather than making a show and theatre
Hired to enforce consistency in strength training 3 times per week, as Kilichowski admits he dislikes exercise and would otherwise find excuses to skip sessions.
He sees the trainer as a way to ‘trick his brain’ — the social commitment and financial cost override his natural aversion to effort, ensuring he does not miss workouts.
vs alternatives
Self‑directed gym attendance failed due to lack of accountability, so the trainer is a necessary behavioural tool.
Personal experience
Without a trainer, his adherence was poor; with one, he trains 3 times per week consistently.
when I didn't have this trainer my brain always found some reason not to go to that training … I found a way to trick my brain a little
Shield Day Shield (daytime glasses blocking ~40% of blue light)
Product Sponsored · disclosed
For daytime screen use and indoor work under LED lighting to reduce cumulative blue‑light stress without disrupting circadian alertness.
DisclosureSebastian Kilichowski is the founder of Shield, the company that produces these glasses.
Day Shield glasses are designed to block around 40% of blue light in the most energetic 455 nm range, while remaining cosmetically acceptable with a slight purple reflection. Kilichowski contrasts them with typical optician coatings that claim blue‑light blocking but physically cannot achieve meaningful reduction with perfectly clear lenses. He has tested various glasses with professional light‑measuring equipment and often does live demonstrations at conferences, finding that most transparent ‘blue‑blockers’ block light that electronics don’t even emit.
vs alternatives
Superior to standard optician blue‑coated lenses, which he says block far less blue light and do not target the most harmful wavelengths.
Personal experience
He wears Day Shield glasses regularly during the day, as seen in the interview.
these glasses block about 40 percent of blue light in the most energetic area 455 nanometers … most glasses from an optician's shop … block significantly significantly less of that blue light
Shield Night Shield (evening glasses blocking and absorbing 100% of blue light)
Product Sponsored · disclosed
Worn for the 3 hours before sleep to completely eliminate blue light, allowing undisturbed melatonin production and mitochondrial recovery.
DisclosureSebastian Kilichowski is the founder of Shield, the company that produces these glasses.
Night Shield lenses not only block but physically absorb 100% of blue light, preventing stray light from bouncing off the lens perimeter into the eye and activating melanopsin. Kilichowski insists this absorption is critical because even a small reflected ray can disrupt the circadian signal. The lenses have a special internal structure rather than a surface coating. They look like regular glasses (not welding goggles), so they can be worn at home without feeling bizarre.
vs alternatives
Unlike transparent ‘blue‑blocker’ coatings, these physically absorb all blue photons, making them the only solution he considers effective for true circadian protection.
Personal experience
He wears them every evening 3 hours before bed, and if he watches a film or holds a live stream, he uses them plus an additional passionflower supplement to dampen stimulation.
three hours before sleep in my opinion 100% of blue light should be blocked … our glasses … not only do they block but they also absorb it 100% … light can come in from the side … and if the lenses do not absorb … it can reflect and reach the inside of the eye
A deliberately named product line that shifts the narrative from ‘anti‑sun’ to ‘pro‑sun’, presumably filtering UV while allowing red/infrared light to pass.
DisclosureKilichowski’s own brand expansion; he mentions ‘I released my own sunglasses’ then corrects to ‘PR słoneczne’.
Kilichowski criticises the very concept of sunglasses for blocking healing red and near‑infrared wavelengths. His ‘PR słoneczne’ are likely designed to protect against excessive UV glare while maintaining red/IR transmission, but he does not detail specifications in this interview. The name itself is a marketing statement against the demonisation of the sun.
vs alternatives
Positioned as the healthy alternative to standard sunglasses that ‘mimic a permanent cloudy day’ and reduce serotonin 14‑fold.
In my opinion sunglasses are one of the worst inventions of humanity and this is said by a person who released their own sunglasses … sorry not sunglasses but PR słoneczne
Sleep Power (supplement with passionflower and etas)
Supplement Sponsored · disclosed
Used occasionally when overstimulated in the evening (e.g., after a live stream or a film with blue light) to counteract excitation and improve sleep quality.
DisclosureReceived as a gift from Kuba Maur (Maur’s supplement line). Not paid promotion.
Sleep Power contains passionflower (męczennica cielista) and etas (possibly a form of ashwagandha or another adaptogen). Kilichowski sees it as an emergency tool, not a daily supplement, because the foundation must be light hygiene. He mentions that caffeine is a stimulant, while these herbs act as de‑stimulants.
vs alternatives
Positioned against daily melatonin or sleeping pills as a gentler, plant‑based alternative for occasional use.
Personal experience
He has tested it after evening screen exposure and found it helps; he is still in the testing phase.
passionflower etas will reduce neutralise that stimulation … if I am stimulated I have some kind of evening live stream … well then such supplementation can temporarily improve that sleep quality
Lines worth pulling out — contrarian, specific, or perfectly phrased
6 items
LED light is dangerous for humans for animals that it can raise blood sugar and insulin levels by itself without eating carbohydrates
A bold, concrete claim that divorces metabolic disruption from diet entirely and pins it on lighting.
In my opinion sunglasses are one of the worst inventions of humanity and this is said by a person who released their own sunglasses
A deliberately provocative statement from someone who sells eyewear, immediately corrected to reveal his ‘pro‑sun’ line — memorable for its irony and marketing savvy.
by putting on sunglasses you can pretend it's a cloudy day meaning people who have … worsened mood walk around in sunglasses all the time so for their brain it's always a cloudy rainy day and they basally have em times less serotonin
Translates a complex photobiology concept into a simple, vivid analogy with a staggering 14‑fold magnitude.
if you expose yourself to artificial light before sleep without protection … we average one hour less deep sleep … 360 hours less deep sleep … compare now your competition that sleeps well and has those 360 hours more
Frames blue‑light avoidance as a competitive advantage — a compelling biohacking take.
in Chinese medicine it is also the case that you pay the doctor when you are healthy and you stop paying him when you are sick … in Poland … no one has an interest in you being healthy
A sharp, systemic critique of the incentive structure in Western healthcare, used as a rationale for self‑experimentation.
if science were based on faith it would be religion so today people behave like some kind of seers and knew everything
A concise, aphoristic takedown of scientism that captures his stance on open‑minded inquiry.
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Educational summary of the cited expert source — not medical advice. Open the source recording linked above and consult a qualified physician before acting on any protocol.