Sorry, There Is No "Healthy" Drinking

Send us Fan MailRead the article on SubstackFor decades, the message seemed clear: a little alcohol might protect your brain. The famous U-shaped curve suggested light drinkers were safer than both heavy drinkers and non-drinkers when it came to dementia risk.But what if this reassuring narrative was built on a fundamental misreading of the science?In this paradigm-shifting episode, we explore a massive study using genetic data from 2.4 million people that completely dismantles the protective drinking myth. Through Mendelian randomization—a powerful technique that uses genetics to establish causation—researchers discovered the U-curve was an illusion created by reverse causation and confounding.You'll discover:Why observational studies consistently got it wrongHow people in early dementia often stop drinking BEFORE diagnosis, creating misleading patternsWhat genetic analysis actually reveals: a straight-line increase in risk with any alcohol consumptionThe staggering finding that reducing alcohol use disorder could prevent 16% of dementia casesWhy there appears to be no safe threshold for brain healthReferences:  Alcohol use and risk of dementia in diverse populations: evidence from cohort, case-control and Mendelian randomisation approachesThis is Heliox: Where Evidence Meets EmpathyIndependent, moderated, timely, deep, gentle, clinical, global, and community conversations about things that matter.  Breathe Easy, we go deep and lightly surface the big ideas. Support the showDisclosure: This podcast uses AI-generated synthetic voices for a material portion of the audio content, in line with Apple Podcasts guidelines. We make rigorous science accessible, accurate, and unforgettable.Produced by Michelle Bruecker and Scott Bleackley, it features reviews of emerging research and ideas from leading thinkers, curated under our creative direction with AI assistance for voice, imagery, and composition. Systemic voices and illustrative images of people are representative tools, not depictions of specific individuals.We dive deep into peer-reviewed research, pre-prints, and major scientific works—then bring them to life through the stories of the researchers themselves. Complex ideas become clear. Obscure discoveries become conversation starters. And you walk away understanding not just what scientists discovered, but why it matters and how they got there.Independent, moderated, timely, deep, gentle, clinical, global, and community conversations about things that matter.  Breathe Easy, we go deep and lightly surface the big ideas.Spoken word, short and sweet, with rhythm and a catchy beat.http://tinyurl.com/stonefolksongs