Addiction has become the default framework for interpreting problematic social media use. It shapes how it is measured, discussed, regulated, and what support young people are offered. But does it match the experiences of young people who report feeling addicted to social media? 🧵(1/7)
Uku Vainik
@ukuvainik.bsky.social
Professor of behavioral genetics with my own twins. I mix behaviour and genetics at Tartu & McGill to understand obesity. I also mix global music as a DJ.
Väide on täitsa tõene. Thiel ja ta kaaskond just sellest räägivad. "Ta väidab, et tehnoloogiamaailmas leidub inimesi, kes ei võta inimkonna kadumist tragöödiana, vaid järgmise sammuna evolutsioonis. Üks tema tuttav olla öelnud: „Inimesed on asendatav liik.“" ekspress.delfi.ee/artikkel/120...
Eestlane, kes annetab aastas rohkem, kui enamik rikkaid terve eluga teenib
Jaan Tallinn (54) teenib tehisaruga miljardeid, kulutab tohutuid summasid maailma päästmisele ning nimetab ennast väljasuremise vastaseks.
ekspress.delfi.ee
Interesting piece on personality in the Washington Post, they talked to @tedmond.bsky.social and @tuckerdrob.bsky.social about changing personality, birth order, genetics effects… (but no @dingdingpeng.the100.ci cameo on birthorder!)
Column | Birth order doesn’t predict your personality. Here’s what does.
New research is challenging assumptions about what determines our personality — and showing that you can change it.
washingtonpost.com
New collaboration between @sangerinstitute.bsky.social & @amsterdamumc.bsky.social in @natgenet.nature.com! Largest study to date on associations between DNA & intelligence. We reduce ascertainment bias & boost power by imputing missing scores in @ukbiobank.ac.uk www.nature.com/articles/s41... 👇🏽
Estonia seeks to adopt Nutri-score. Many producers oppose Nutri-score on grounds it's not perfect capture of reality. At the same time, producers use a whole spectrum of their own food labels, which are likely suboptimal.
The comparator matters in food-label research. Claims often accompanied better nutrient scores in new US products, yet many still met the UK model’s “less healthy” threshold. A useful distinction between relative and overall quality. www.nature.com/articles/s43...
This essay (from 1990) is still the most useful piece I've ever read on how to write about science clearly. The "old-first, new-last" thing is the most important bit. www.americanscientist.org/blog/the-lon...
americanscientist.org
SocArXiv now has a limit of two papers per week. If authors submit more than that we assume they are LLM-generated and reject them all. Normal humans who need to upload a batch of papers, which sometimes happens, must make arrangements. Also today, ArXiv set a two papers per month limit.
Fair Moderation, Equitable Access, and AI: arXiv’s Updated Rate Limit Policy
arXiv, and the scientific community at large, are facing a watershed moment. Scholarly publishing is currently changing at a rapid pace, and we are seeing a…
blog.arxiv.org
News about the Novo study I presented @easdnews.bsky.social on effects of Cagrisema on eating behaviour and food cue reactivity in overweight/obesity www.novonordisk.com/content/nnco...
News Details
News Details
novonordisk.com
Did you know that your speed — in a simple task of quickly pressing a button every time you see a yellow square — is faster when you are exhaling or pausing then when you are inhaling? Dr. Erika Yamazaki figured this out, did all the work, and published on it this week www.cell.com/iscience/ful...
Response speed is modulated by respiratory phase
Behavioral neuroscience; Cognitive neuroscience
cell.com
New trial of retatrutide (triple agonist, building on GLP-1s), shows 25% weight loss in the highst-dose group. 25%! Just a few years back, a trial with 10% weight loss would have been big news. These drugs are the biggest public health boon since antibiotics and vaccines.
In the phase 3 TRIUMPH-1 trial involving patients with obesity, retatrutide, a triple hormone receptor agonist, resulted in substantial weight reduction and a decrease in knee osteoarthritis pain and obstructive sleep apnea events. Full trial results: https://nej.md/4ycgSHz
Hey friends, trying to find a reviewer who could provide a review on an empirical EMA paper focused on emotion regulation. I've had 31 declines so getting a little desperate and feel really bad for the authors. Let me know here or per email (firstnamesecondname@gmail.com)
Great example of combining a low-N accurate child BMI GWAS with high-N inaccurate GWAS.
Since our paper on the Changing How I Live Life (CHILL) Study is now out in Psychological Science (doi.org/10.1177/0956...), here's a LONG overdue post on the intervention work we've been doing the past few years! Have you ever wanted to change one of your personality traits?
netneurotools: a trainee-oriented approach to network neuroscience | doi.org/10.1038/s415... Our lab’s internal toolkit for accomplishing everyday tasks in brain imaging @natprot.nature.com ⤵️
netneurotools: a trainee-oriented approach to network neuroscience - Nature Protocols
This is a Perspective covering a Python toolbox for neuroscience research that enables users to fetch datasets, construct networks and null models, estimate graph metrics, fit statistical models and v...
doi.org
IBG at CU Boulder is hiring 2-3 tenure-track faculty (junior or senior) in statistical genetics, twin/family designs, and computational work. A chance to help shape IBG for decades. Starts fall 2027. More info: colorado.edu/ibg/. Apply by Oct 15. Please repost!
Home
colorado.edu
So… we just found out that GPT sol can complete a complex online behavioral/cognitive study producing nearly indistinguishable behavior and subjective reports… right as we are about to launch. Is this doomsday for online cognitive testing?
Saime ka Eesti meedias isiksuse GWASist ja käitumisgeneetikast natuke juttu puhuda 🎙️🍎📰 @ukuvainik.bsky.social
Started off great! Less than 4€ at ebooks.com www.ebooks.com/en-ee/book/2...
eBooks.com: Buy Fiction, Non-Fiction, and Textbooks Online
eBooks.com is a leading retailer of ebooks, with a vast range of ebooks from academic, popular and professional publishers.
ebooks.com
Following this recommendation, we just finished @barbaratruelove.bsky.social’s “Of Monsters and Mainframes.” This was a fun read, think monsters on a spaceship, written from the perspective of the ship’s autopilot. Can recommend!
New preprint! 🎉 I analysed 1660 papers from 4 psychology journals and found materials sharing went from 9% of papers in 2015 to 82% in 2025, and these materials *do* get downloaded — a median of 135 times each. BUT shared code is often hard to run. doi.org/10.31234/osf... Let's walk through it 🧵
We also tried giving latent profile analyses a fair chance and concluded that it has limited utility journals.sagepub.com/doi/full/10....
To Profile or Not to Profile: A Multiinformant Study of the Robustness and Utility of Personality-Based Profiles on a Large Biobank Sample - Helo Liis Soodla, Uku Vainik, René Mõttus, Kirsti Akkermann...
Person-centered personality profiles are widely used to examine latent covariation patterns in heterogeneous samples. However, their robustness across measureme...
journals.sagepub.com
This is an *excellent* post on cluster analysis. If you ever thought about applying cluster, latent class or latent profile analysis to psychological scales, you absolutely should read this!>
Join EstWell’s second research seminar of the academic year on 22 September, 11:00–12:00 (Zoom). Helo Liis Soodla and Lehar Lukjanov will present “See the person, not their problem or what happens to them”. More information: estwell.ut.ee/en/event/est...
Cool project! It makes perfect sense that daydreaming is related to high openness and low conscientiousness
Our new work exploring associations between childhood thoughts, feelings, and behaviors and the big 5 personality PGIs is now preprinted! www.medrxiv.org/content/10.6...
Out today with @tedmond.bsky.social, our research briefing summarizing key takeaways from our Big Five GWAS! www.nature.com/articles/d41...
Genetic associations with the Big Five personality traits probed in one million people
Links between genetic variants and personality differences are robust, complex and related to health, career and relationship outcomes.
nature.com
Why do people with type 2 diabetes often lose less weight with GLP-1s? My first paper with AstraZeneca uses modeling to suggest that reduced urinary glucose excretion & energy expenditure offset negative energy balance, particularly with background SGLT2i therapy. www.biorxiv.org/content/10.6...
Amazon's market dominance has actually destroyed adjacent industries, as well as inflating prices across entire market segments and destroying our ability to comparison shop and effectively find the best product for our needs. Here's how:
Amazon's own balance sheet presents the most compelling evidence that we are stuck in the Enshittocene, the era in which everything is turning into a pile of shit, because the worst ideas of the worst people now make the most money. 1/
There are about as many trees in Canada as stars in the milky way
Tell me a fun fact.
Our big Big Five GWAS, out today! Personality Genomics is extremely hot in 2026.
🚨& 🧵 Our new Nature paper is out! Across 46 cohorts and up to 1.14M people per Big Five trait, we do GWAS and ask how robust, generalizable and consequential the genetic signals underlying personality really are. www.nature.com/articles/s41...