6 Needs context
Ridesharing services such as Uber have led to a significant reduction in drunk driving deaths.
"Now that I get apparently there there's a lot less death due to drunk driving because of Uber." (said at 1:16:42)
The evidence on whether ridesharing services such as Uber reduce alcohol-related traffic fatalities is mixed and highly conditional. While some observational and economic analyses suggest localized or period-specific reductions in drunk driving crashes, nationwide epidemiological evaluations in the United States and international studies (such as in Chile) have found no overall statistically significant association between the deployment of Uber and reductions in total or drunk-driving traffic fatalities. Furthermore, systematic reviews of alternative transportation programs emphasize mixed effectiveness across different settings and populations.
Kary Mullis, who invented the polymerase chain reaction (PCR) technique to amplify DNA, conceived the underlying logic while on an LSD trip.
"the guy who developed polymerase chain reaction, which you can use to amplify DNA, which is used for everything from, you know, forensics to, you know, genealogy, all sorts of things... That supposedly that guy came to the logic of that on an LSD trip." (said at 2:07:19)
Kary Mullis, who won the 1993 Nobel Prize in Chemistry for developing the polymerase chain reaction (PCR), frequently credited his past experiences with LSD for enhancing his visual imagination and ability to conceptualize biochemical processes, famously stating in interviews that he doubted he would have invented PCR without LSD. However, according to Mullis's own detailed autobiographical accounts, the specific conceptual breakthrough did not occur while actively on an LSD trip; rather, the insight occurred during a late-night drive along California's Highway 128 to his cabin in Mendocino County in May 1983.
ICU psychosis is a clinical phenomenon in intensive care units driven by severe circadian rhythm disruption and fragmented sleep, which typically resolves once the patient goes home.
"There's a thing called ICU psychosis where people come into the intensive care unit and they're being woken up in the middle of the night and they've got lights on, you know, there's like hospital life, right? And they start to become genuinely psychotic. They go home, the psychosis lifts. This is a well-known phenomenon cuz their circadian rhythm is so out of whack." (said at 2:14:24)
The speaker refers to the historical term 'ICU psychosis' (now clinically defined as ICU delirium), describing it as driven by environmental sleep fragmentation and circadian disruption (noise, lights, night-time awakenings) that resolves upon discharge. While sleep deprivation, continuous artificial lighting, frequent clinical interruptions, and circadian misalignment are well-documented contributors to ICU delirium and acute brain dysfunction, critical care literature emphasizes that ICU delirium is multifactorial, driven substantially by underlying critical illness, systemic inflammation, metabolic derangements, organ dysfunction, and sedatives/analgesics. Furthermore, post-ICU sleep disturbances, cognitive impairments, and psychological distress frequently persist after discharge as part of post-intensive care syndrome (PICS), rather than instantly lifting upon going home.
- context: Mechanisms and Impact of Sleep Disturbance in Critical Illness: A Review. (Journal of intensive care medicine 2025) · cited 1x in the literature
"Critically ill patients frequently encounter sleep deprivation and circadian rhythm disruptions due to various factors, such as underlying diseases, environmental influences, frequent medical interventions, immobility, and delirium." (abstract, results, passage verified)
pubmedfull study (doi) - context: Sleep, circadian rhythms and outcomes in intensive care unit. (Frontiers in neurology 2026)
"Disrupted sleep architecture, characterized by reduced total sleep time, loss of rapid eye movement sleep, and atypical electroencephalographic patterns, has been associated with prolonged mechanical ventilation, weaning failure, and noninvasive ventilation failure. Alterations in sleep and circadian rhythmicity are also linked to delirium and markers of acute brain dysfunction... Emerging data further indicate that sleep and circadian disturbances may persist long after ICU discharge and contribute to cognitive impairment, psychological distress, fatigue, and reduced quality of life." (abstract, results, passage verified)
pubmedfull study (doi)
A low-protein, high-sugar diet stimulates the generation of fibroblast growth factor (FGF), which converts into high metabolic energy.
"there's this idea that when you are low protein, high sugar, you generate this fibroblast growth factor, one of these FGFs, that then converts into a bunch of energy. And this is why like kids have tons of The theory is this is why kids have tons of energy." (said at 2:22:57)
Dietary protein restriction, particularly in the context of high carbohydrate intake, robustly stimulates hepatic secretion of fibroblast growth factor 21 (FGF21) in both humans and animal models. FGF21 acts centrally and peripherally to increase resting energy expenditure and thermogenesis, requiring higher caloric intake to maintain body weight. However, this metabolic energy expenditure refers to caloric dissipation and thermogenesis (mitochondrial uncoupling and heat production), not subjective vitality or physical hyperactivity in children.
- supports: FGF21 and the Physiological Regulation of Macronutrient Preference. (Endocrinology 2020) · cited 98x in the literature
"Circulating FGF21 levels are robustly increased by diets that are high in carbohydrate but low in protein, and exogenous FGF21 treatment reduces the consumption of sweet foods and alcohol while alternatively increasing the consumption of protein." (abstract, passage verified)
pubmedfull study (doi) - context: Low Protein Diets and Energy Balance: Mechanisms of Action on Energy Intake and Expenditur… (Frontiers in nutrition 2021) · cited 36x in the literature
"While the neuroendocrine signals that trigger hyperphagic responses to protein restriction are better understood, there is accumulating evidence that increased sympathetic flux to brown adipose tissue, fibroblast growth factor-21 and serotonergic signaling are important for the thermogenic effects of low protein diets." (abstract, passage verified)
pubmedfull study (doi) - supports: Dietary protein restriction elevates FGF21 levels and energy requirements to maintain body… (Nature metabolism 2025) · cited 29x in the literature
"We also show that fasting plasma FGF21 levels increase during protein restriction... In conclusion, we demonstrate that maintaining body weight during dietary protein restriction in healthy, lean men requires a higher energy intake, partially driven by FGF21-mediated mitochondrial adaptations in adipose tissue." (abstract, results, passage verified)
pubmedfull study (doi)
Young children's skin is significantly more absorbent to topically applied substances than older or adult skin.
"kids' skin is young skin is also much more absorbent than older skin." (said at 2:34:10)
While infants and children are at greater risk of systemic toxicity from topically applied substances, this is primarily driven by a significantly higher body surface area-to-body weight ratio and differences in drug clearance, rather than the skin tissue itself being intrinsically more absorbent. In full-term infants and young children, the stratum corneum thickness and epidermal barrier function against percutaneous absorption are structurally and functionally comparable to adult skin. Markedly increased skin permeability and absorption are predominantly seen in premature neonates who have not yet developed a mature epidermal barrier.
- context: Stratum corneum maturation. A review of neonatal skin function. (Skin pharmacology and physiology 2004) · cited 166x in the literature
"Based on transepidermal water loss and percutaneous absorption studies, term infants seem to possess stratum corneum with adult barrier properties. Additionally, postnatal life is thought to accelerate stratum corneum maturation, so that even preterm infants have barrier function similar to term infants at 2-3 weeks of gestational age." (abstract, passage verified)
pubmedfull study (doi) - context: Skin. (Pediatrics 2004) · cited 20x in the literature
"Percutaneous toxicity is of greatest concern in the premature infant, in whom immaturity of the epidermal permeability barrier results in disproportionately increased absorption. Immature drug metabolism capabilities may further contribute to the increased risk in this population." (abstract, passage verified)
pubmed - context: Comparison of stratum corneum thickness in children and adults. (Journal of the American Academy of Dermatology 1983) · cited 67x in the literature
"We compared the thickness of the stratum corneum from abdominal skin in infants less than 3 months of age, children between 3 months and 11 years, and adults. Measurements were made with a filar micrometer eyepiece on histologic sections obtained at autopsy. No significant differences were seen; therefore, a stratum corneum of different thickness cannot be used to explain differences in percutaneous absorption, supporting previous work which suggested that term infants and children have an efficient skin barrier. The greater toxicity from percutaneous absorption of topical compounds sometimes seen in children is more likely due to their increased surface to volume ratio and/or metabolic differences." (abstract, passage verified)
pubmedfull study (doi)
Nature magazine published a review demonstrating the importance of exposure to a balanced spectrum of long-, medium-, and short-wavelength light.
"And Nature magazine, which is a legitimate scientific publication—they've been around more than, you know, a hundred and something years, and serious science only, although there are some, you know, there are some horse papers published there, but usually gets corrected over time—they published a review recently which said yeah, like yeah, you can see what you want is that balanced spectrum of long-wavelength, medium-wavelength, and short-wavelength light, but not getting burned." (said at 2:35:11)
The claim appears to reference research published in Scientific Reports (a journal within the Nature Portfolio, rather than Nature magazine itself) by Glen Jeffery and colleagues. The authors argue that life evolved under broad-spectrum, spectrally balanced sunlight (300–2500 nm) and tested whether supplementing short-wavelength-dominant LED lighting with broader spectra (400–1500+ nm) improved mitochondrial respiration and visual contrast sensitivity in humans. However, the publication was a small primary experimental study rather than a formal review in Nature magazine.
Unverified means no publication matching the claim was located; it does not prove the claim false. Spotted an error? See the corrections policy - disputes from the people quoted are prioritized.