Exercise scientist. Author of The Skeptic's Guide to Sports Science & The Health and Wellness Lie. Writing/speaking on health, evidence, scientific skepticism.https://bsky.app/profile/nbtiller.bsky.socialhttps://bsky.app/profile/nbtiller.bsky.social/post/3mm4jtddcbs2d18 May 2026 09:11 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mm4jtddcbs2dhttps://bsky.app/profile/nbtiller.bsky.social/post/3mlng6fjigs2tCatch me on this week's episode of the @Scienceofsport podcast, talking about chatbot #health #misinformation: ➡️https://www.youtube.com/watch?v=WkHH62nGpO0 ➡️https://podcasts.apple.com/us/podcast/can-you-trust-ai-for-health-and-training-advice/id1461719225?i=100076646444412 May 2026 08:56 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mlng6fjigs2thttps://bsky.app/profile/nbtiller.bsky.social/post/3mlj5fcstts2uKudos AHA.10 May 2026 16:08 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mlj5fcstts2uhttps://bsky.app/profile/nbtiller.bsky.social/post/3mlixab22ks2hWhat are we doing here, folks?!🤦‍♂️ #cocodona25010 May 2026 14:18 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mlixab22ks2hhttps://bsky.app/profile/nbtiller.bsky.social/post/3mlctewgbu22xCelebrating the 100th birthday of Sir David Attenborough: a British institution whose love of science and the natural world has inspired generations to leave the planet better than they found it.08 May 2026 03:53 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mlctewgbu22xhttps://bsky.app/profile/nbtiller.bsky.social/post/3mlaqveaglc2tExercise is medicine. But as with all medicines, there's a MINIMUM dose required for benefits & an OPTIMUM range. There's also likely a TOXIC dose. For #exercise, the therapeutic ratio is high, but not infinite. ➡️https://pubmed.ncbi.nlm.nih.gov/34542868 ➡️https://pubmed.ncbi.nlm.nih.gov/3276966507 May 2026 08:03 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mlaqveaglc2thttps://bsky.app/profile/nbtiller.bsky.social/post/3ml6ezziozs2fStudies with food-industry involvement published in leading nutrition journals were ~six times more likely to report favorable findings than studies without industry involvement: 55.6% vs 9.7%. https://pmc.ncbi.nlm.nih.gov/articles/PMC7743938/ #nutrition #research06 May 2026 09:25 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3ml6ezziozs2fhttps://bsky.app/profile/nbtiller.bsky.social/post/3ml3ok33uj22rMy latest column in @SkeptInquirer explores the recent US executive order to expand research into psychedelics, and ibogaine in particular. How did it come about? And what are the risks? https://skepticalinquirer.org/exclusive/the-hand-of-the-king-ibogaine-psychedelics-and-dr-joe-rogan/05 May 2026 07:37 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3ml3ok33uj22rhttps://bsky.app/profile/nbtiller.bsky.social/post/3mkprzgfq2s2fTonight, 19:00 Eastern. https://skepticalinquirer.org/video/the-health-and-wellness-lie-nick-tiller30 Apr 2026 14:08 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mkprzgfq2s2fhttps://bsky.app/profile/nbtiller.bsky.social/post/3mjyl7ac4wc2shttps://www.medpagetoday.com/practicemanagement/informationtechnology/120860 #chatbots #health21 Apr 2026 08:34 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mjyl7ac4wc2shttps://bsky.app/profile/nbtiller.bsky.social/post/3mjlw3b6se223It's one of ChatGPT's most insidious tells: "It's not X; it's Y" has become shorthand for lazy AI slop. https://www.theguardian.com/commentisfree/2026/apr/15/chatgpt-stylistic-quirk-its-not-x-its-y #AIWriting #ChatGPT16 Apr 2026 07:45 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mjlw3b6se223https://bsky.app/profile/nbtiller.bsky.social/post/3mjjdbq3rtc24Our NEW study in @BMJ_Open is an audit of 𝐡𝐞𝐚𝐥𝐭𝐡 𝐦𝐢𝐬𝐢𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧 spread by popular AI chatbots. Learn more🧵1/7 Thx to amazing team: @CaulfieldTim @srmarcon at @UAlbertaLaw & @Jeukendrup @marco_zenone 🔗https://bmjopen.bmj.com/content/16/4/e112695 #health #misinformation #AI15 Apr 2026 07:03 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mjjdbq3rtc24https://bsky.app/profile/nbtiller.bsky.social/post/3miva7fbodk2f99% of #acupuncture studies from China report benefits of the therapy. "This isn’t routine bias; it’s the systematic sterilization of negative outcomes." Is it time we stop publishing acupuncture studies from China? New column in @SkeptInquirer.07 Apr 2026 07:15 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3miva7fbodk2fhttps://bsky.app/profile/nbtiller.bsky.social/post/3mijufoivws2m"After trekkers reported nausea, dizziness or body aches, they were advised to descend and agree to costly emergency helicopter evacuations. Authorities said operators then used forged medical and flight documents to claim costs from international travel insurers."02 Apr 2026 18:44 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mijufoivws2mhttps://bsky.app/profile/nbtiller.bsky.social/post/3mfopdvzpi22bA "good" VO2max for your age, like 60th-80th percentile, gives you all the "longevity" benefits the metric will provide. There is no lifespan advantage to being Olympic-level fit.25 Feb 2026 12:41 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mfopdvzpi22bhttps://bsky.app/profile/nbtiller.bsky.social/post/3mfbwi7wv6c2kNew feature in the Feb/Mar issue of @UltraRunningMag 🏃‍♂️🏃‍♀️🏔️20 Feb 2026 10:44 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mfbwi7wv6c2khttps://bsky.app/profile/nbtiller.bsky.social/post/3mf4pobzxoc2iThe daily use of AI, in everything from smartphones to stoplights, can be traced back to a simple game of checkers—played by Aurhur Samuel in 1959. ➡️https://gwern.net/doc/reinforcement-learning/model-free/1959-samuel.pdf18 Feb 2026 08:59 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mf4pobzxoc2ihttps://bsky.app/profile/nbtiller.bsky.social/post/3mf2742jaas2jBad science, lies, and possible fraud: The homeopathy paper that duped a mainstream journal. New column today in @SkeptInquirer #health #pseudoscience Read it ⬇️⬇️: h/t @theliverdoc17 Feb 2026 08:57 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mf2742jaas2jhttps://bsky.app/profile/nbtiller.bsky.social/post/3menp3hskn22jFIVE PERCENT of Americans regularly consult psychic services, with ONE-THIRD (30%) using them occasionally. Though high, it's actually lower than many other high-income developed countries.12 Feb 2026 09:39 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3menp3hskn22jhttps://bsky.app/profile/nbtiller.bsky.social/post/3mel6fuhzns2wA quick lesson in research conflicts of interest: This 2024 paper in the Journal of Dietary Supplements showed that an oxygen "nanobubble beverage" improved power output in a 16-km cycling TT by ~4%, and in repeated Wingates by ~7%. 🧵1/711 Feb 2026 09:35 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mel6fuhzns2whttps://bsky.app/profile/nbtiller.bsky.social/post/3me6juv2esk2hPolitical polarization. Negative numbers (blue) reflect less polarization and more friendly political interactions. Positive numbers (red) reflect more division and hostile interactions. Myanmar=3.72, US=1.79, Britain=-0.24, Norway=-2.1.06 Feb 2026 08:56 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3me6juv2esk2hhttps://bsky.app/profile/nbtiller.bsky.social/post/3me4cilg4ak2fDon't criticize Attia to promote your own brand. That's fake and disingenuous: criticize him for being a dirtbag. And remember, he's far from the only wellness influencer contributing to the industry's ethical rot.05 Feb 2026 11:38 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3me4cilg4ak2fhttps://bsky.app/profile/nbtiller.bsky.social/post/3me42djyxo222More acupuncture nonsense. L.I.4 (Hegu, the joining valley) is said to "treat" an astonishing array of conditions, including mumps and "pain in the arm." This is medically impossible—out of step with everything we've learned about anatomy and physiology since Hippocrates.05 Feb 2026 09:12 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3me42djyxo222https://bsky.app/profile/nbtiller.bsky.social/post/3mdzjhbyoj22sNew study in JAMA shows acupuncture is SUPERIOR to sham for headaches. Three reasons it’s probably wrong: 🧵1/604 Feb 2026 09:05 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mdzjhbyoj22shttps://bsky.app/profile/nbtiller.bsky.social/post/3mdx44vovp22yChiropractic may be the biggest evidence-to-marketing mismatch I’ve seen in wellness. Numbers in the UK are growing every year, but the serious risks aren't justified by the imaginary benefits. #chiropractic #pseudoscience03 Feb 2026 10:01 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mdx44vovp22yhttps://bsky.app/profile/nbtiller.bsky.social/post/3mcwehyzjmc24June 2026.21 Jan 2026 09:32 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mcwehyzjmc24https://bsky.app/profile/nbtiller.bsky.social/post/3mbtfdvosec2gAnother death related to whole-body cryotherapy, this time in Paris. *Preventable death, since the benefits are highly contested, with small and inconsistent effects, and the risks simply aren't justified. #wellness #pseudoscience https://www.theguardian.com/world/2025/apr/15/woman-dies-hospital-cryotherapy-paris-gym07 Jan 2026 11:45 +0000at://did:plc:3ngd5byfwwirklf2yrfrz74p/app.bsky.feed.post/3mbtfdvosec2g