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Fartein Ask Torvik

@torvik.bsky.social
574 followers 456 following 22 posts

Mental health and behaviour genetics. Senior researcher/associate professor at Norwegian Institute of Public Health & University of Oslo

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Reposted by Fartein Ask Torvik
Abdel Abdellaoui @dr-appie.bsky.social · 14/09/2026
Partners resembled each other in psychiatric disorders among 787,658 Danish couples. The part of the resemblance that overlapped with socioeconomic status grew over time. What partner resemblance means therefore depends on when it was measured. Preprint: www.medrxiv.org/content/10.6...
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Abdel Abdellaoui @dr-appie.bsky.social · 05/09/2026
Thanks @lottelambrecht.bsky.social for the interview in the Belgian @standaard.be. We discuss the complex relationship between DNA, behavior, and society, racist pseudoscience from people like Nathan Cofnas & Emil Kirkegaard, and polygenic embryo selection. English: drive.google.com/file/d/1jSpH...
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Ted Schwaba @tedmond.bsky.social · 02/09/2026
Our big Big Five GWAS, out today! Personality Genomics is extremely hot in 2026.
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Michel Nivard @michelnivard.bsky.social · 02/09/2026
🚨& 🧵 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...
nature.com
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Ludvig Daae Bjørndal @ludvigdb.bsky.social · 23/06/2026
Family history has been recognised as a risk factor for psychiatric disorders since the late 18th century. In this new preprint, we leverage family history of psych and neurodev diagnoses to estimate family-genetic risk scores (PA-FGRSs) in the Norwegian population🧵 doi.org/10.31234/osf...
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Fartein Ask Torvik @torvik.bsky.social · 04/06/2026
Grandmothers pay the price: Grandmothers work less, have lower incomes, and experience respiratory infections more often. But they have fewer mental health problems compared with people of the same age who have not yet become grandparents. www.fhi.no/en/news/2026...
fhi.no
Grandmothers pay the price
Grandmothers work less, have lower incomes, and experience respiratory infections more often. But they have fewer mental health problems compared with people of the same age who have not yet become gr...
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Fartein Ask Torvik @torvik.bsky.social · 29/05/2026
Congrats to the brilliant first-author @mlandersen.com! Read her thread here bsky.app/profile/mlan...
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Fartein Ask Torvik @torvik.bsky.social · 29/05/2026
New paper out in PNAS! We show that becoming a grandparent substantially reduces employment and earnings, especially for women. At the same time, grandparents go more to the doctor for respiratory infections, but less for mental health conditions. www.pnas.org/doi/10.1073/...
pnas.org
The cost of caring: Gendered health and labor market effects of grandparenthood | PNAS
While the effects of the transition to parenthood are well researched, less is known about how the transition to grandparenthood affects health and...
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Eivind Ystrom @eivindy.bsky.social · 04/02/2026
Article alert!🚨 1/11 Parents matter - and we can quantify part of that influence genetically. Our new JCPP paper on multivariate indirect maternal genetic effects across internalizing and externalizing symptoms. doi.org/10.1111/jcpp... #jcpp @uio.no @unioslo-svfak.bsky.social @unioslo-uv.bsky.social
doi.org
<em>Journal of Child Psychology and Psychiatry</em> | ACAMH Pediatric Journal | Wiley Online Library
Background From a functionalist perspective, parenting behaviors have adaptive functions and are partly expressions of genetic variation. Maternal genes that have effects on children are often refer...
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Michel Nivard @michelnivard.bsky.social · 20/12/2025
I drafted a letter to the editor, please help me out by DMing, commenting, emailing feedback if you are an expert on colliderbias, id obviosuly ad you as a author, Ideally we submit within 24-48 hrs, draft: zenodo.org/records/1800... (click download if the pdf doesnt preview on zenodo)
zenodo.org
Negative Associations Between Early and Adult Performance Arise from Colider Selection Bias
Güllich et al. argue that among elite performers there is a negative associationbetween early and adult performance, a pattern they link to distinct developmentalcausal mechanisms for early, and adult...
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Michel Nivard @michelnivard.bsky.social · 20/12/2025
This smells distinctly like collider bias and/or selection bias and/or regression to the mean... You simply can't select teen prodigies, and world class athletes rom databases, and go run regressions without serious consideration of the selection process!
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Andrew Grotzinger @andrewgrotzinger.bsky.social · 10/12/2025
1/4 Thrilled to be sharing new work published today in Nature describing the third wave of results from the PGC Cross-Disorder Group. This reflects a massive group effort to examine shared and unique genetic signal across >1 million cases for 14 psychiatric disorders. www.nature.com/articles/s41...
nature.com
Mapping the genetic landscape across 14 psychiatric disorders - Nature
Genomic analyses applied to 14 childhood- and adult-onset psychiatric disorders identifies five underlying genomic factors that explain the majority of the genetic variance of the individual disorders...
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Fartein Ask Torvik @torvik.bsky.social · 05/12/2025
Who wants to join us in Oslo to study how health influences educational underperformance? We are hiring PhDs postdocs candidates for our funded project. We will follow children from birth to emerging adulthood, using behavioural genetic methods and large datasets 945000.webcruiter.no/Main/Recruit...
945000.webcruiter.no
Two positions as either PhD or postdoctoral fellow on health determinants of education
Do you want to research how health influences school performance and leads to intergenerational inequality? We have two vacant 3-year positions as a PhD fellow or postdoctoral research fellow in the p...
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Maria L. Andersen @mlandersen.com · 20/11/2025
Key insights (2/2) • 10 years later, employed grandmothers are 12% less likely to work full-time, compared to a 2% reduction for grandfathers. Women also see larger income drops. • The gendered patterns in infections + employment suggest women still are more involved in informal childcare provision.
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Maria L. Andersen @mlandersen.com · 20/11/2025
Key insights (1/2) • Respiratory infections jump in the first years of grandparenthood: +56% for women, +31% for men • Grandparents are slightly less likely to see a doctor for mental disorders (−4.5%) & cardiovascular issues (−3.3%) • Grandmothers have fewer musculoskeletal-related visits (−3.8%)
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Maria L. Andersen @mlandersen.com · 20/11/2025
New preprint📈📉 What happens to health and work when people become grandparents? Using Norwegian register data on all individuals born 1950-1960, we use event-study models comparing grandparents to not-yet grandparents to track changes in health and labour supply. 🔗 www.ssrn.com/abstract=571...
Figure showing event-study plots centred around the birth of one's first grandchild. The left plot shows health changes, the right shows labour market changes (separated by grandparent gender). The image shows the following abstract: 

The Cost of Caring: Gendered Health and Labour Market Effects of Grandparenthood

While the effects of the transition to parenthood are well-researched, less is known about how the transition to grandparenthood affects health and labour market outcomes. Using comprehensive Norwegian register data covering the entire population born between 1950 and 1960, we examine the effects of first-born grandchildren born during 2007–2018. Employing event-study models with person-year records, we compare grandparents to not-yet grandparents. Our findings reveal a sharp increase in the likelihood of respiratory infections during the first two years of grandparenthood, with infections increasing by 56% for women and 31% for men. Additionally, grandparenthood modestly reduces the likelihood of doctor’s visits related to mental disorders (4.5%) and cardiovascular health (3.3%). Grandmothers also see a decline in musculoskeletal-related visits (3.8%). These health-related changes coincide with notable gendered effects on labour market participation. Ten years after the birth of their first grandchild, employed women are 12% less likely to hold full-time positions compared to a 2% reduction for men. Overall, our findings demonstrate that the transition to grandparenthood significantly reshapes health and economic outcomes for both women and men. The larger effects observed for women likely reflect their greater involvement in informal childcare provision. Our results underscore the intersection of health, family dynamics, and gendered labour market behaviours in late adulthood.
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Hannah Shelley, MLIS (Maggots, Lycanthropes & Ice Skeletons) @hannahshelley.site · 13/08/2025
Since search is dead, how soon do you think Google Scholar is headed for the Google Graveyard? I'm betting it's soon, and academia is NOT prepared
hannahshelley.neocities.org
Google Scholar Is Doomed
Academia built entire careers on a free Google service with zero guarantees. What could go wrong?
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Hans Fredrik Sunde @hfsunde.bsky.social · 04/08/2025
Here is a free link to the paper if you don't have access:: onlinelibrary.wiley.com/share/author... I also wrote a more detailed thread when I posted the preprint last year. Check it out here if you are interested: bsky.app/profile/hfsu...
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Hans Fredrik Sunde @hfsunde.bsky.social · 04/08/2025
Accompanying the paper is an interactive web page with figures and tables showing the prevalence of psychological codes in the ICPC-2 by age, sex, and parental income quartile. Check it out here: hfsu.shinyapps.io/prevalence_b...
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Hans Fredrik Sunde @hfsunde.bsky.social · 04/08/2025
Our new paper is out today! 🎉 In it, we use administrative register data to document how psychiatric disorders are strongly linked to parental income, from childhood far into adulthood. Furthermore, we attempt to separate causation and selection using kinship-based models. doi.org/10.1111/jcpp...
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Hans Fredrik Sunde @hfsunde.bsky.social · 28/06/2025
Our new study is just out in Psychological Science! We study cognitive ability at age 18 and mental health 20 years later in 270k Norwegian men. We include different mental disorders, compare education by ability, and run sibling-fixed effects. Check it out here: doi.org/10.1177/0956...
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Magnus Nordmo @magnusnordmo.bsky.social · 28/06/2025
3/7 🎓 Educational attainment also independently predicted better mental health. But the highest risk was for men who were low in both cognition and education. This group faced the highest probability of adult psychiatric diagnoses.
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Magnus Nordmo @magnusnordmo.bsky.social · 28/06/2025
🧵1/7 New study: How do adolescent cognitive ability and education predict adult mental disorders? 🧠📚➜🧑‍⚕️ Using Norwegian register data (N = 272,351 men) of GP diagnoses and military assessed cognitive abilities. 👇
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Hans Fredrik Sunde @hfsunde.bsky.social · 11/06/2025
Last week, our new paper on indirect assortative mating was published.🍾 Let’s take a closer look at what this means, why it matters, and what we found (🧵/32): www.nature.com/articles/s41...
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Eivind Ystrom @eivindy.bsky.social · 10/06/2025
1/13 New preprint out! We developed methods to test a key assumption in family-based genetic studies: that siblings don’t genetically influence each other’s traits. Spoiler: mostly they don’t, but there’s a twist with ADHD ratings at age 3 👶 osf.io/preprints/ps...
t.co
https://osf.io/preprints/psyarxiv/b4c76_v1
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Hans Fredrik Sunde @hfsunde.bsky.social · 06/06/2025
I will write a detailed thread next week. If something is confusing until then, I highly recommend the supplementary notes, where I go through the logic more slowly and in greater depth.
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Hans Fredrik Sunde @hfsunde.bsky.social · 06/06/2025
Results imply that partners are strongly assorting (r=.68) on education-associated trait(s) with large shared-environmental effects (i.e. Social Homogamy). Accounting for this in intergenerational models reveals previously hidden or underestimated environmental effects.
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Hans Fredrik Sunde @hfsunde.bsky.social · 06/06/2025
Our paper on indirect assortative mating is now out in @natcomms.nature.com! In it, we provide refined definitions of terms used to explain partner similarity, develop statistical models, and find evidence of surprisingly high social homogamy for education. Link: doi.org/10.1038/s414...
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Josi Bernardo @josefina-bernardo.bsky.social · 26/05/2025
Very grateful that I got to present at the ESSGN past Friday. In the study I presented, we looked at intergenerational transmission of education in a sample of the Norwegian population register. We used a Children-of-Twins model to look at GPA at age 16 and educational attainment in the parents.
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Perline Demange @perlinedemange.bsky.social · 16/04/2025
New preprint! We find no evidence that parental mental health influences children's academic achievement when comparing families in the Norwegian MoBa study. osf.io/preprints/ps... Quick thread 👇
Main figure of the paper: Associations between parental mental health (anxiety and depression, alcohol problematic use, ADHD, eating disorder) with children's tests scores in mathematics, reading comprehension and English as second language at age 10.
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Dr Elsje van Bergen @drelsje.bsky.social · 13/04/2025
🚨 Big question, big paper! Why does educational inequality run in families? The parent-child education link (r = .31) is often seen as purely environmental. From 569k kids, we decomposed it: 🧬 68% genetic 🏡 12% parental environment 👴 20% extended-family environment 👉 doi.org/10.31234/osf... 🧵
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Ingrid Skovdahl @ingridskovdahl.bsky.social · 01/04/2025
Vi har et skrikende behov for kunnskap for å møte vår tids utfordringer, med fallende skoleprestasjoner og økt fravær. Derfor er det avgjørende med et nasjonalt individdataregister fra skoler og barnehager, mener Camilla Stoltenberg, @martinflato.bsky.social, @torvik.bsky.social og Karin Monstad.
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Fartein Ask Torvik @torvik.bsky.social · 01/04/2025
Fallende skoleprestasjoner og økt fravær avdekker et skrikende behov for kunnskap for å møte vår tids utfordringer. Til det trenger vi registre fra skoler og barnehager. www.altinget.no/lovebakken/a...
altinget.no
Vi har et skrikende behov for kunnskap om barn - Altinget
Fallende skoleprestasjoner og økt fravær avdekker et skrikende behov for kunnskap for å møte vår tids utfordringer. Til det trenger vi registre fra skoler og barnehager, skriver Martin Flatø, Fartein ...
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Fartein Ask Torvik @torvik.bsky.social · 10/02/2025
I dag får bare 0,6 % av barn utsatt skolestart i Norge. Det er alt for få, og det kan ha alvorlige konsekvenser for umodne barn www.nrk.no/ytring/fleks...
nrk.no
Fleksibel skolestart
Det er på høy tid at barnas behov settes foran systemets krav.
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Kristin @kthftw.bsky.social · 26/01/2025
Hvorfor er det tilsynelatende umulig for folk å forstå at dersom statens råd skal ha legitimitet så må de være basert på forskning og fakta og ikke bare være noe som mest mulig er på linje med følelsene til ressurssterke bekymrede foreldre? Og at man kan gjøre ting uten at staten sier det?
nrk.no
Nasjonale skjermråd – nå!
Foreldre trenger tydelige råd om barn og skjermbruk, ikke mumlete anbefalinger som ingen oppfatter.
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Andrew Grotzinger @andrewgrotzinger.bsky.social · 06/12/2024
You've heard of DNA, but what about GNA? Very excited about this preprint with @jgthorp.bsky.social and others that introduces Genomic Network Analysis (GNA), an open-source multivariate tool for performing network analysis using GWAS summary statistics as input. 1/2 www.medrxiv.org/content/10.1...
medrxiv.org
Genomic network analysis characterizes genetic architecture and identifies trait-specific biology
Pervasive genetic overlap across human complex traits necessitates developing multivariate methods that can parse pleiotropic and trait-specific genetic signals. Here, we introduce Genomic Network Ana...
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(10/10) A big thank you to my excellent co-authors! @hfsunde.bsky.social, @rosacheesman.bsky.social, Nikolai Eftedal, Matthew C. Keller, @eivindy.bsky.social, and Espen M. Eilertsen
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(9/10) Several reasons besides direct assortment can explain partner similarities. In this paper, we cannot determine which processes are most important. However, we can distinguish between these in future research.
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(8/10) Could health similarities be by-products of partner choice based on education? To some extent—partner correlations in health were reduced by 30–40% after accounting for educational attainment in adulthood or school grades at age 16.
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(7/10) Do mental health and education determine partner choice? Many studies assume so-called direct assortment. If direct assortment fully explains partner choice, it would be easy to predict correlations between siblings-in-law. But they are much more similar than expected under direct assortment.
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(6/10) This means that children with a mental disorder are more likely to have another parent with a mental disorder or with low education. This matters for the distribution of both genetic and environmental risk factors among children.
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(5/10) Below, we see near universal cross-trait assortment. In the prospective data, partner correlations are as strong between different mental disorders as for the same mental disorders. Later in life, partners were more likely to have the same mental disorder (see paper).
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(4/10) We see strong similarity in education, as expected, and also for school grades at 16. In dark blue, we see that partners' mental health was correlated from the start. But cross-sectional studies likely overestimate assortment. In red, we see that mental health became more similar over time.
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(3/10) We studied all first-time parents in Norway 2016-2020 (I'm in the sample!) and used data up to 10 years before they had their first child. We looked at educational attainment, grade point averages at age 16, and 10 mental disorders and 10 somatic disorders.
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(2/10) Assortative mating refers to partner choice, but is only one of several explanations for partner similarity. Many studies on partner similarity cannot determine if couples differed from the start. This matters for genetics and social inequality research.
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Fartein Ask Torvik @torvik.bsky.social · 03/12/2024
(1/10) Check out our new paper in Nature Communications! “Non-random mating patterns within and across education and mental and somatic health”. In the paper, we study partner similarities before they (were likely to have) met. www.nature.com/articles/s41467-024-54966-9
nature.com
Non-random mating patterns within and across education and mental and somatic health - Nature Communications
By analyzing 187,926 Norwegian first-time parents, researchers found that partners are more similar in mental than physical health, with mental health similarity increasing over time. Educational simi...
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Josi Bernardo @josefina-bernardo.bsky.social · 21/11/2024
I am happy to report that I have commenced my research stay at the Norwegian Institute for Public Health in Oslo! I re-united with my supervisor dr. Elsje van Bergen on Tuesday. Together with @torvik.bsky.social and @hfsunde.bsky.social we will study intergenerational transmission of education.
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Fartein Ask Torvik @torvik.bsky.social · 21/11/2024
How do parents matter for their children's heath? In our new paper, we find that parents’ education and income strongly predict early adult mortality. However, once we account for children's own school performance, social background is no longer important. www.nature.com/articles/s41...
nature.com
School performance and the social gradient in young adult death in Norway - Nature Human Behaviour
This study, using population-wide data from Norway, found that school performance was a stronger predictor of young adult death than parental education or earnings and largely explained the socioecono...
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Fartein Ask Torvik @torvik.bsky.social · 20/11/2024
I wonder if we would see the same for other, more common health outcomes. A big thank you to both co-authors: @olerogeberg.bsky.social and first-author Bjørn-Atle Reme. Link to paper here: www.nature.com/articles/s41...
nature.com
School performance and the social gradient in young adult death in Norway - Nature Human Behaviour
This study, using population-wide data from Norway, found that school performance was a stronger predictor of young adult death than parental education or earnings and largely explained the socioecono...
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Fartein Ask Torvik @torvik.bsky.social · 20/11/2024
But here's the twist: this link vanishes when we account for children's grade point average (GPA) at age 16. GPA appears to mediate the effects of family background.
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