Summary
In this solo show I break down what Alzheimer's disease is, why so many studies show that tobacco smokers have higher risk for Alzheimer's, how the vitamin K shot given to infants differs from vitamin K supplements, and the specific and multiple mechanisms of how vitamin K2 works to prevent the development of Alzheimer's disease. I talk about the relationship between cadmium, lead, and Alzheimer's disease. I spend quite a bit of time talking about the difference between nicotine supplements and smoking tobacco, and why smoking may not be as bad as everyone says if other things are done to mitigate the harmful products of combustion.
Key Points
- Impact of light exposure on health and circadian rhythm
- Exploring beneficial compounds in tobacco beyond nicotine
- Vitamin K2's role in brain health and calcium metabolism
Key Moments
Nicotine reverses spatial memory loss in Alzheimer's
Tobacco contains beneficial terpenes beyond nicotine. Nicotine alone has been shown to reverse spatial memory loss in Alzheimer's models.
"in isolation, like this 2001 Cochrane Database systemic review, and it reads, nicotine is a cholinergic agonist, which means promoter, that also has a presynaptic effect in releasing acetylcholine. It has been shown to reverse spatial memory deficits produced in rats by lesions in the medial septal nucleus of their brains."
Related Research
Nicotine treatment of mild cognitive impairment: A 6-month double-blind pilot clinical trial
Newhouse P (2012) · Neurology
Six months of transdermal nicotine improved attention and memory in non-smoking adults with mild cognitive impairment, with no significant safety concerns.
Effects of transdermal nicotine delivery on cognitive outcomes: A meta-analysis.
Majdi A (2021) · Acta neurologica Scandinavica
Transdermal nicotine significantly improves attention and response time in both smokers and non-smokers, with effects on episodic memory limited to non-smokers.
Cognitive Effects of Nicotine: Recent Progress.
Valentine G (2018) · Current neuropharmacology
Nicotine reliably enhances attention and working memory through nicotinic acetylcholine receptor activation, with effects modulated by baseline cognitive capacity, genetics, and dosing parameters.
Meta-analysis of the acute effects of nicotine and smoking on human performance
Heishman SJ (2010) · Psychopharmacology
Meta-analysis confirms nicotine significantly improves attention, memory, and motor performance, with effects seen in both smokers and non-smokers.
Cognitive performance effects of nicotine and industry affiliation: a systematic review.
Pasetes SV (2020) · Substance abuse : research and treatment
Tobacco industry-affiliated studies were significantly more likely to report cognitive benefits of nicotine, while independent studies showed mixed results, highlighting the need to account for funding bias.
Effects of nicotine on attention and inhibitory control in healthy nonsmokers
Wignall ND (2011) · Experimental and Clinical Psychopharmacology
Nicotine significantly improved sustained attention in non-smokers, demonstrating cognitive enhancement effects independent of addiction or withdrawal.
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