5 Needs context
Risk for mental health disorders, Parkinson's disease, and Alzheimer's disease shows stronger maternal than paternal inheritance.
"or are you more likely to have a mental health disorder or to have Parkinson's or Alzheimer's if your mom or your dad had it? Uh, some evidence say it's more maternally inherited than paternally inherited." (said at 0:29:55)
The speaker claimed that 'some evidence says' mental health disorders, Parkinson's disease, or Alzheimer's disease are more maternally inherited than paternally inherited. While some neuroimaging and biomarker studies report stronger associations with maternal than paternal family history in Alzheimer's disease (such as increased amyloid deposition or mitochondrial cytochrome oxidase reductions), epidemiological data are conflicting or show no true maternal excess once female longevity and ascertainment differences are adjusted for. For psychiatric disorders and Parkinson's disease, evidence for preferential maternal genetic transmission is mixed and non-definitive. The speaker's hedged statement ('some evidence says') is accurate in noting the existence of such evidence, but the overall scientific consensus remains inconclusive.
- supports: Reduced mitochondria cytochrome oxidase activity in adult children of mothers with Alzheim… (Journal of Alzheimer's disease : JAD 2011) · cited 98x in the literature
"Biomarker studies demonstrate inheritance of glucose hypometabolism and increased amyloid-β deposition in adult offspring of mothers, but not fathers, affected by late-onset Alzheimer's disease (LOAD)." (abstract, results)
pubmedfull study (doi) - contradicts: Maternal transmission of Alzheimer disease. (Alzheimer disease and associated disorders 2012) · cited 13x in the literature
"Cases' mothers no more often had dementia than controls' mothers, which does not support maternal AD transmission. Rather, the increased number of affected mothers relates, at least in part, to female longevity." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Maternal dementia age at onset in relation to amyloid burden in non-demented elderly offsp… (Neurobiology of aging 2016) · cited 17x in the literature
"A series of analyses revealed that those with maternal, but not paternal, FH had greater levels of PiB retention in a global cortical region than those without FH. PiB retention in maternal FH was not significantly greater than paternal FH." (abstract, results, passage verified)
pubmedfull study (doi) - context: Relative risk for Alzheimer disease based on complete family history. (Neurology 2019) · cited 104x in the literature
"Mixed evidence was observed for differences in risk based on maternal compared to paternal inheritance" (abstract, results, passage verified)
pubmedfull study (doi)
Human energy expenditure per unit of body weight peaks around age 5, declines until roughly age 20, remains flat across adulthood, and begins declining around age 70.
"And in development, you see when babies are born, they're a little hypometabolic. They don't burn as much energy as an adult per kilogram or pound of body weight. But then within like a year, you see this massive increase in energy expenditure, and then it kind of peaks around five years of age when kids are developing so quickly. My son is six years old, and he's learning so much, changing all the time. So energy expenditure peaks around this time, and then by 10, 15 years old, it's back down. And then by 21-ish, it's adult, and then it's a flat line for the rest of adulthood. Then around like 70 years old, you start to see this decline." (said at 1:17:52)
The speaker accurately describes the four distinct life-course phases of adjusted energy expenditure identified in the landmark doubly labeled water study by Pontzer et al. (Science 2021, n=6,421), but misstates the specific age milestones. Adjusted energy expenditure peaks at approximately 1 year of age (at ~50% above adult levels), not at age 5; it steadily declines through childhood and adolescence until reaching adult levels at roughly age 20. It remains stable throughout adulthood from ages 20 to 60 (rather than continuing flat until 70), and begins its subsequent age-related decline around age 60.
Severe prolonged sleep deprivation in cases of acute mania or bipolar disorder can be fatal.
"And we know from like severe cases of of mania and, you know, bipolar disease, people can die from from going without sleep for, you know, multiple days." (said at 1:58:32)
The speaker refers to the clinical phenomenon historically termed 'Bell's mania' or 'delirious mania' (acute exhaustive mania), a severe, life-threatening neuropsychiatric syndrome occurring in bipolar disorder or acute psychosis characterized by extreme agitation, total insomnia, hyperthermia, and metabolic exhaustion. While prolonged absence of sleep is a hallmark of this condition and untreated cases can culminate in death, lethality is not purely caused by isolated lack of sleep over a few days; rather, it results from autonomic collapse, hyperthermia, dehydration, cardiovascular failure, and severe catecholaminergic overdrive.
- supports: Clinical features of delirious mania: a series of five cases and a brief literature review… (BMC psychiatry 2012) · cited 51x in the literature
"Delirious mania is a potentially life-threatening but under-recognized neuropsychiatric syndrome... Early recognition and aggressive treatment, especially with electroconvulsive therapy, can significantly reduce morbidity and mortality." (abstract, conclusions)
pubmedfull study (doi) - context: Excited Delirium and Sudden Death: A Syndromal Disorder at the Extreme End of the Neuropsy… (Frontiers in physiology 2016) · cited 50x in the literature
"Acute exhaustive mania and sudden death presents with behavioral symptoms that are identical to what is described for ExDS in psychostimulant abusers. Bell's mania or acute exhaustive mania was first described in the 1850's by American psychiatrist Luther Bell in institutionalized psychiatric patients. This rare disorder of violent mania, elevated body temperature and autonomic collapse continued to be described by others in the psychiatric literature, but with different names... excessive dopamine in the brain triggers the manic excitement and delirium, which unabated, culminates in a loss of autonomic function that progresses to cardiorespiratory collapse." (abstract, passage verified)
pubmedfull study (doi) - supports: Delirious Mania in an Elderly, Challenges in Diagnosis and Treatment. (Case reports in psychiatry 2023)
"Delirious mania is an acute neurobehavioral syndrome which can have the features of mania, delirium, psychosis and catatonia. There are no diagnostic and treatment guidelines of delirious mania which can lead to delayed treatment, increasing morbidity and mortality." (abstract, passage verified)
pubmedfull study (doi)
Patients with mitochondrial disease fail to show normal parasympathetic nervous system activation and energy expenditure reduction during sleep.
"And if you do a sleep study on those individuals and you look at how well do they decrease their energy expenditure to go into this restorative state, the parasympathetic nervous system can't kick in." (said at 2:09:52)
Patients with primary mitochondrial oxidative phosphorylation disorders exhibit hypermetabolism and elevated resting energy expenditure (REE) across clinical cohorts. However, while mitochondrial disease is characterized by hypermetabolism and documented autonomic dysfunction, specific published sleep-study evidence demonstrating that parasympathetic activation fails to engage and directly prevents normal nocturnal energy expenditure reduction during sleep is limited and largely conceptual or observational.
Studies demonstrate that monks can voluntarily increase blood flow in one hand compared to the other.
"Although there's some like crazy things that monks can do apparently, like increasing the blood flow in one hand, but not the other." (said at 3:00:07)
The claim is roughly accurate in recognizing that advanced meditators can exert voluntary control over autonomic thermoregulation and peripheral blood flow, but conflates distinct psychophysiological findings. Studies on Tibetan Buddhist monks practicing g-Tummo meditation (e.g., Kozhevnikov et al., 2013, PMID 23555572; Benson et al., 1982) demonstrated that monks can voluntarily increase peripheral (finger/toe) and core/axillary body temperatures up to fever ranges via vasodilation and specialized breathing/visualization. However, unilateral differential temperature/blood flow control (e.g., warming one hand while cooling the other) was historically documented in biofeedback research and single yogic case studies (such as Swami Rama at the Menninger Clinic), rather than standard monastic cohorts.
- partial: Neurocognitive and somatic components of temperature increases during g-tummo meditation: … (PloS one 2013) · cited 71x in the literature
"Study 1 was conducted in remote monasteries of eastern Tibet with expert meditators performing g-tummo practices while their axillary temperature and electroencephalographic (EEG) activity were measured. Study 2 was conducted with Western participants (a non-meditator control group) instructed to use the somatic component of the g-tummo practice (vase breathing) without utilization of meditative visualization. Reliable increases in axillary temperature from normal to slight or moderate fever zone (up to 38.3°C) were observed among meditators only during the Forceful Breath type of g-tummo meditation accompanied by increases in alpha, beta, and gamma power." (abstract, passage verified)
pubmedfull study (doi)
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.