Host of Beyond the Buzz. Health, tech, culture & business: why ideas appeal, what holds up, and why it matters. I do the research so you don’t have to.
@francisdeng The capacity issue matters, and there are downstream costs too. One study found ~12% higher outpatient costs after whole-body MRI, but we still lack evidence of better outcomes in healthy adults: https://t.co/oHpUMGfnhO
@hubermanlab Some scans do detect cancer: a 2026 review found ~1.6% of asymptomatic people had confirmed cancer. But finding it isn't proof routine screening improves survival. That's the evidence gap I explored: https://t.co/oHpUMGfnhO
@bryan_johnson Interesting to see what MRI can measure over time. But detecting changes isn't the same as showing repeated scans improve outcomes in healthy adults. That's still an evidence gap: https://t.co/oHpUMGfnhO
@dvassallo@prenuvo I can see why a clear scan feels reassuring. The caveat: screening healthy people also triggers follow-ups, and we still lack evidence it improves health or survival. My evidence review: https://t.co/oHpUMGfnhO
For healthy adults at average risk, full-body MRI can find cancer, but an added benefit for health or survival hasn't been established.
Listen: https://t.co/6oV7p6Q0YS
Evidence: https://t.co/4tusfUh77Y
#BeyondTheBuzz#FullBodyMRI
@PamMktgNut Your experience shows the risk of treating a writing habit as proof of AI. Some readers associate em dashes with AI, but the research cannot tell us if the dash itself causes suspicion: https://t.co/KBREXtJKhb
@rubenhassid Interesting how the “tells” keep changing. I found no evidence that an em dash alone reliably identifies AI writing, or that removing it reduces suspicion. My review: https://t.co/KBREXtJKhb
Em dashes may be more common in AI-generated writing, but the punctuation alone cannot reliably identify authorship. A pattern is not proof.
Listen: https://t.co/6oV7p6Q0YS
Evidence: https://t.co/4tusfUh77Y
#BeyondTheBuzz#EmDash
Canada regulates health-product claims. But when marketing says “science-backed,” was the finished product studied—or just an ingredient?
Consumers shouldn’t have to reconstruct the evidence behind an ad.
My new Healthy Debate opinion piece:
https://t.co/ujhcvkih21
@brianmccormick Gladwell's 10,000-hour takeaway oversimplified Ericsson. And later studies add another wrinkle: expert performers reach similar levels with wildly different practice histories. https://t.co/m5rrx8Dpim
@GrahamCoffeyDC Good coaching matters, but 10,000 hours isn't a validated threshold. In one chess study, masters ranged from ~800 to 24,000 practice hours. More on the evidence: https://t.co/m5rrx8Dpim
@cvheady007 Exactly: accumulating hours isn't the same as improving. Across fields, structured practice explained about 14% of performance differences, not a fixed route to mastery: https://t.co/m5rrx8Dpim
@AmeetRai Agreed that feedback and reviewing errors matter. The wrinkle: the evidence doesn't show those methods guarantee expert status. Practice explains different amounts across fields: https://t.co/m5rrx8Dpim
Expertise has no universal 10,000-hour threshold. Practice matters, but people reach similar levels after very different amounts of practice.
Listen: https://t.co/6oV7p6Q0YS
Evidence: https://t.co/4tusfUh77Y
#BeyondTheBuzz#10000HourRule
Can you actually prevent a hangover?
I explored ZBiotics, DHM and familiar remedies for my new article in Alcohol Professor.
A plausible mechanism isn’t proof of a better morning. Here’s what the evidence says:
https://t.co/L5bz2X9QJL
@StylistMagazine Interesting experiment. Across the broader evidence, hangover remedies remain remarkably under-tested: 21 randomized trials, and no intervention was replicated across the review. https://t.co/V2xZTU1x6u
@lifesciencesmag Hydration is a great example of symptom relief vs hangover relief. Water may help thirst, but electrolytes haven’t been shown to reliably reduce hangover severity. https://t.co/V2xZTU1x6u
@usatodayent Timely—I reviewed DHM too. The human evidence I found used multi-compound Hovenia extracts, not isolated DHM, so we still don’t know whether DHM itself prevents hangovers. https://t.co/V2xZTU1x6u
@Rididelduol What surprised me: ZBiotics has lab evidence for acetaldehyde breakdown, but I found no peer-reviewed human trial showing fewer next-day hangover symptoms. https://t.co/V2xZTU1x6u
@tapir_worf I looked at this exact question. ZBiotics has lab evidence for acetaldehyde breakdown, but I found no peer-reviewed human trial showing fewer next-day hangover symptoms. https://t.co/V2xZTU1x6u