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Superhuman Contact Lenses, Motivation Supplement Stack, Cat Scratches Cause Brain Fog, Amino Acid Shortening Lifespan, and more...
Description
This week's stories:
*Bartonella Hides in Cat Scratches — and It Might Be Why You Feel Like Garbage
A stealth bacterial infection transmitted by everyday cat scratches and flea dirt has been quietly linked to chronic fatigue, brain fog, and neurological symptoms for decades. Dave breaks down how Bartonella slips past standard testing, why it's almost never on a conventional doctor's radar, and the specific PCR protocol you need to actually find it.
Sources:
*High Tyrosine Levels May Be Cutting Years Off Men's Lives
A Mendelian randomization study of 270,000 UK Biobank participants found that elevated tyrosine is causally linked to nearly a full year of lost lifespan in men — with zero effect in women. The culprit appears to be an inflammatory oxidation pathway that men metabolize very differently. Dave examines what this means for every guy stacking L-tyrosine nootropics or eating high-protein keto.
Sources:
- https://pubmed.ncbi.nlm.nih.gov/41045493/
- https://www.aging-us.com/news-room/high-tyrosine-levels-linked-to-shorter-lifespan-in-men
- https://www.usnews.com/news/health-news/articles/2026-02-27/study-suggests-one-common-amino-acid-may-affect-how-long-men-live
*Blue Light Blocking Contact Lenses Are a Legitimate Vision Upgrade
ALTIUS Vision's tinted contact lenses aren't just blue light filters — they cut chromatic aberration by 53% and improve motion tracking and contrast sensitivity in ways that software filters simply can't replicate. Dave covers the mechanism, who benefits most (screen workers, TBI recovery, gamers), and how to find a provider.
Sources:
- https://altiusvision.com/chromatic-aberration/
- https://altiusvision.com/science-of-altius/
- https://www.westvalleyvision.com/-altius--performance-tinted-contact-lenses
*Taurine Plus B Vitamins Actually Moves the Needle on Motivation
A randomized crossover trial found that a daily stack of taurine, B6, folate, and B12 sustained effort-reward motivation and cut cognitive lapses significantly compared to placebo — and the mechanism runs through glutathione production in brain astrocytes. Dave breaks down why this combo works when either ingredient alone doesn't.
Sources:
- https://pubmed.ncbi.nlm.nih.gov/41889717/
- https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2026.1711478/full
- https://www.nutraingredients.com/Article/2026/03/23/taurine-and-b-vitamins-bost-motivation-and-focus/
*30 Seconds of Smelli