Send us a text Read the article on Substack For 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 wrong How people in early dementia often stop drinking BEFORE diagnosis, creating misleading patterns What genetic analysis actually reveals: a straight-line increase in risk with any alcohol consumption The staggering finding that reducing alcohol use disorder could prevent 16% of dementia cases Why there appears to be no safe threshold for brain health References: Alcohol use and risk of dementia in diverse populations: evidence from cohort, case-control and Mendelian randomisation approaches This is Heliox: Where Evidence Meets Empathy 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. Thanks for listening today! Four recurring narratives underlie every episode: boundary dissolution, adaptive complexity, embodied knowledge, and quantum-like uncertainty. These aren’t just philosophical musings but frameworks for understanding our modern world. We hope you continue exploring our other podcasts, responding to the content, and checking out our related articles on the Heliox Podcast on Substack . Support the show About SCZoomers: https://www.facebook.com/groups/1632045180447285 https://x.com/SCZoomers https://mstdn.ca/@SCZoomers https://bsky.app/profile/safety.bsky.app Spoken word, short and sweet, with rhythm and a catchy beat. http://tinyurl.com/stonefolksongs Curated, independent, moderated, timely, deep, gentle, evidenced-based, clinical & community information regarding COVID-19. Since 2017, it has focused on Covid since Feb 2020, with Multiple Stores per day, hence a large searchable base of stories to date. More than 4000 stories on COVID-19 alone. Hundreds of stories on Climate Change. Zoomers of the Sunshine Coast is a news organization with the advantages of deeply rooted connections within our local community, combined with a provincial, national and global following and exposure. In written form, audio, and video, we provide evidence-based and referenced stories interspersed with curated commentary, satire and humour. We reference where our stories come from and who wrote, published, and even inspired them. Using a social media platform means we have a much higher degree of interaction with our readers than conventional media and provides a significant amplification effect, positively. We expect the same courtesy of other media referencing our stories.
