| Karolinska Institutet

Teenagers looking at their mobile phones

Adolescent social media use not linked to later mental ill-health

The amount of time Swedish teenagers spent on social media could not be linked to symptoms of depression or anxiety five years later. This according to a new study from Karolinska Institutet published in the Journal of Adolescent Health.

Grants, awards and donations

Photo: Subash Chandra Malik

Helena Karlström receives a Novo Nordisk grant for research into a new treatment for small vessel disease

KI researcher Helena Karlström has been awarded a Pioneer Innovator Grant from the Novo Nordisk Foundation. The project aims to develop a new antibody-based treatment for the inherited cerebrovascular disorder CADASIL, a common cause of, amongst other things, stroke and eventually memory problems, for which there is currently no effective treatment.

Photo: Francois Lallemend

Saida Hadjab receives second Novo Nordisk Foundation grant to advance chronic pain research

Karolinska Institutet researcher Saida Hadjab has received a second prestigious grant from the Novo Nordisk Foundation to develop a new type of therapy that could help reverse the biological processes that drive persistent pain.

Juan Pablo Lopez, Assistant Professor, Ph.D.

Photo: Igor Zacharov

Juan Pablo Lopez appointed FENS-Kavli Scholar 2026

Juan Pablo Lopez, assistant professor at the Department of Neuroscience at Karolinska Institutet, is the first researcher in Sweden selected as a FENS-Kavli Scholar, a distinction presented to a small number of outstanding European neuroscience researchers in the early or middle stages of their careers.

Portrait of the researcher Emma Andersson.

Photo: Ulf Sirborn

ERC Proof of Concept Grant to Emma Andersson will lead to fewer laboratory animals

Emma R. Andersson has been awarded the prestigious ERC Proof of Concept Grant to further develop her technique to create mice with specific genetic signatures. “This innovation can lead to a drastic reduction in the number of animal experiments worldwide, not just in my lab,” she says.

Photo: Liza Simonsson

KI researchers dominate the Swedish Research Council's call for international postdocs

Seven out of eight awarded grants go to researchers at Karolinska Institutet in the Swedish Research Council's spring call for international postdocs in medicine and health. In total, 8 out of 44 applications were approved.

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New study

Postnatal collapse is rare but can have deleterious consequenses

Sudden unexpected postnatal collapse during the first week of life is rare but can have deleterious consequenses. A new study shows that the condition is more common than previously estimated and highlights measures that may reduce the risk.

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New study

Metabolic syndrome linked to faster brain ageing

People with metabolic syndrome tend to have brains that appear older than their actual age, according to a new study. The new findings provide fresh insights into the biological processes that may link metabolic health to the brain.

Photo: Getty Images.,Getty Images

New study

Simple tools accurate in predicting older adults' health

Several tools are currently used to assess the health of older people and their risk of future health problems, but it is unclear which ones perform best. A new study compares seven widely used geriatric assessment tools.

Illustration of acute myeloid leukemia (AML) cells in blood flow

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New study

Epigenetic mapping provides deeper insight into leukaemia

Researchers have identified new subgroups of the blood cancer acute myeloid leukaemia. The study shows that changes in the regulation of genes within cells can help explain the variation in the disease and influence prognosis and treatment choices.

Photo: Andreas Claesson

New initiative

New centre to reduce drowning incidents in Sweden

Drowning is a much bigger problem in Sweden than many people realise. The Centre for Drowning Research is established at Karolinska Institutet to consolidate knowledge and help reduce the number of people injured or killed in water-related incidents.

A mother helping her son doing his homework

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New study

Children of mothers with congenital heart defects are at increased risk of developmental vulnerability

Children whose mothers have congenital heart defects are more likely to experience difficulties in areas such as language, communication and social skills when they start school, according to a new study.

Photo: Pixabay

New study

Biological heart valve option for women who want to become pregnant

Choosing a new heart valve is particularly difficult for young women who wish to become pregnant. A new registry study shows that a biological aortic valve offers advantages over a mechanical heart valve during pregnancy and childbirth.

Ett äldre par sitter i bakgrunden och äter. Längst fram på bordet står olika skålar med mat.

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New study

Healthier diet linked to lower dementia in older adults at risk

A healthier diet may be associated with a lower risk of dementia among older adults, including those with blood biomarkers indicating increased biological risk, including of Alzheimer's disease pathology, a new study shows.

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New study

Brain tau spreads differently in early- and late-onset Alzheimer's disease

The amount and distribution of the tau protein in the brain differs between early and late-onset Alzheimer's disease, a new study shows. The results also indicate that blood tests do not always reflect changes in the brain.

The Conversation

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Genetic research into autism raises ethical concerns

Research from Karolinska Institutet shows that, in general, autistic people are in favour of genetic research into autism as long as the aim is to improve their lives. However, many are concerned about how the findings might be used. Read the article in The Conversation.

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A single dose of psilocybin eased depression symptoms for months

A single dose of the psychedelic substance psilocybin, found in so-called magic mushrooms, can provide rapid relief from recurrent depression, with the effects lasting for over three months, according to a new study. However, the researchers also caution that the results may have been influenced by the placebo effect. Read the article in The Conversation.

Photo of man and woman on exercise bikes.

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New study downplays the risk of atrial fibrillation in fit people

New research suggests that the risk of atrial fibrillation in highly fit people is lower than previously thought. The benefits of high fitness levels, including lower rates of cardiovascular disease, clearly outweigh any potential downsides. Read the article in The Conversation.

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Why has PCOS been given a new name?

After decades of research, PCOS is now being renamed PMOS. The new name reflects a growing understanding that the condition is a complex hormonal and metabolic disorder affecting far more than fertility.

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New drug for chronic heart failure tested in early study

An early clinical study shows that a new oral drug is safe and well-tolerated in patients with chronic heart failure. The study has been published in the scientific journal The Lancet.

Red apple with a heartbeat (ECG) line and a stethoscope, symbolizing healthy eating and heart health.

Photo: Getty Images.,Getty Images

New study

High risk of cardiovascular disease in obesity

Obesity is common but often underdiagnosed and associated with a high cardiovascular burden and a markedly increased risk of future cardiovascular disease and premature death. A new study points to a need for improved detection and treatment.

Photo: Erik Flyg

Strategic recruitment

KI continues its strategic initiative – new recruitment of 21 Assistant Professors

On 1 June, Karolinska Institutet launches a major international recruitment campaign for 21 Assistant Professor positions. The aim is clear: to bring in the very best early-career researchers and strengthen KI’s position as a world-leading medical university.

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New study

Immunotherapy may temporarily restore fertility in patients of premature menopause

A pilot study shows that immunotherapy may enable stimulation of egg maturation in women with autoimmune POI (premature ovarian insufficiency) – a condition that usually leads to infertility. Three out of ten women gave birth to healthy babies following the treatment.

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Collaboration

KI steps up efforts in medical preparedness

Karolinska Institutet (KI) is launching a strategic initiative in medical preparedness aimed at strengthening Sweden’s ability to prevent and manage the health-related consequences of crises and war.

Photo: Per Groth

Academic freedom

“We must continue to fight for Ahmadreza Djalali”

Ahmadreza Djalali has been imprisoned in Iran for ten years, facing the threat of execution. The case of this KI researcher highlights a growing threat to academic freedom – even in Western countries such as Sweden.

Photo: Peter Gehrman

The AI frenzy in healthcare

AI is not just another technology. The magazine Medicinsk Vetenskap has spoken to researchers who describe their hopes and fears amid the current AI fever. First published in the magazine Medicinsk Vetenskap no 2 2026.

Photo: Peter Gehrman

More and more people are turning to Dr AI for advice

Dr AI has become a colleague of Dr Google. Researchers see both benefits and risks in this development. First published in the magazine Medicinsk Vetenskap no 2 2026.

Photo: Christian Gustavsson

How AI can accelerate drug development

Andreas Luttens has trained an algorithm that can explore the so-called chemical space – all conceivable combinations of atoms and bonds. First published in the magazine Medicinsk Vetenskap no 2 2026.

Photo: Christian Gustavsson

New tools aim to improve risk assessment in psychiatry

John Wallert’s research aims to develop tools that can be used in psychiatry to predict the risk of serious incidents, so-called prediction models. First published in the magazine Medicinsk Vetenskap no 2 2026.

Photo: Getty Images

Breathing – a key to the body’s stress system

Breathing usually happens without us having to think about it. At the same time, conscious breathing exercises can have a calming effect during anxiety or stress, but there are also breathing techniques that are not without risks. First published in the magazine Medicinsk Vetenskap no 2 2026.

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Researchers point to benefits of nose breathing

Does it matter whether you breathe through your nose or your mouth? Here’s how three researchers answer. First published in the magazine Medicinsk Vetenskap no 2 2026.

Photo: Martin Stenmark

She looks for answers among the perpetrators

By seeking to understand those who commit domestic homicide, Shilan Caman hopes to find ways to prevent future killings. Her research shows that one factor unites them all: the need for control. First published in the magazine Medicinsk Vetenskap no 2 2026.

Photo: Linnea Bengtsson

Doctoral thesis

Working while unwell is common in the aviation industry 

Many pilots and cabin crew members go to work despite suffering from mental or physical health issues. This is shown in a new doctoral thesis by Filippa Folke at Karolinska Institutet. First published in the magazine Medicinsk Vetenskap no 2 2026.

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Appetite suppressants are reshaping the landscape

A minority of Swedes are within the normal weight range, while one in five is obese. New, effective drugs have drastically changed the possibilities for treatment. First published in the magazine Medicinsk Vetenskap no 1 2026.

Photo: Liza Simonsson

Updates from the University Management

Selected top publications

Selenite pushes pancreatic cancer cells toward a less aggressive state
Tímea Szekerczés et al, Journal of Experimental & Clinical Cancer Research, July 2026

New method enables rapid analysis of antibodies to multiple viruses
Rasmus Gustafsson et al, Nature Protocols, July 2026

Staff practices determine the use of coercion against young people
Astrid Moell et al, Lancet Psychiatry, June 2026

Biological differences linked to severe COVID-19
Soham Gupta et al, Genome Medicine, May 2026

From PCOS to PMOS: why the name of a disease matters
Elisabet Stener-Victorin et al, Nature Medicine, May 2026

More high-impact publications

Adolescent social media use not linked to later mental ill-health

Grants, awards and donations

Helena Karlström receives a Novo Nordisk grant for research into a new treatment for small vessel disease

Saida Hadjab receives second Novo Nordisk Foundation grant to advance chronic pain research

Juan Pablo Lopez appointed FENS-Kavli Scholar 2026

ERC Proof of Concept Grant to Emma Andersson will lead to fewer laboratory animals

KI researchers dominate the Swedish Research Council's call for international postdocs

Postnatal collapse is rare but can have deleterious consequenses

Metabolic syndrome linked to faster brain ageing

Simple tools accurate in predicting older adults' health

Epigenetic mapping provides deeper insight into leukaemia

New centre to reduce drowning incidents in Sweden

Children of mothers with congenital heart defects are at increased risk of developmental vulnerability

Biological heart valve option for women who want to become pregnant

Healthier diet linked to lower dementia in older adults at risk

Brain tau spreads differently in early- and late-onset Alzheimer's disease

The Conversation

Genetic research into autism raises ethical concerns

A single dose of psilocybin eased depression symptoms for months

New study downplays the risk of atrial fibrillation in fit people

Why has PCOS been given a new name?

More articles by KI researchers published in The Conversation

New drug for chronic heart failure tested in early study

High risk of cardiovascular disease in obesity

KI continues its strategic initiative – new recruitment of 21 Assistant Professors

Immunotherapy may temporarily restore fertility in patients of premature menopause

KI steps up efforts in medical preparedness

“We must continue to fight for Ahmadreza Djalali”

The AI frenzy in healthcare

More and more people are turning to Dr AI for advice

How AI can accelerate drug development

New tools aim to improve risk assessment in psychiatry

Breathing – a key to the body’s stress system

Researchers point to benefits of nose breathing

She looks for answers among the perpetrators

Working while unwell is common in the aviation industry

Appetite suppressants are reshaping the landscape

Updates from the University Management

Selected top publications

KI in the media (Swedish only)

Research subjects wanted

Working while unwell is common in the aviation industry 