Health · Mental Health · 5 hrs ago
Physical activity linked to less severe depression symptoms in people at genetic risk
Researchers studied 23,517 participants in the US National Institutes of Health’s All of Us program, using genetic data, health records and Fitbit activity records.
They examined how physical activity and genetic risk related to major depressive disorder (MDD), a form of depression.
Higher genetic risk was linked to a greater likelihood of an MDD diagnosis, regardless of activity levels.
Among people diagnosed with MDD, those with higher genetic risk who were more active tended to have less severe symptoms.
This suggests that regular movement may be associated with a lower symptom burden, but it does not remove genetic vulnerability or prevent a diagnosis.
Because the study observed people rather than assigning them to exercise programs, it cannot show that activity caused the difference; depression itself may also affect people’s ability to exercise.
Clinical trials are needed to test how different amounts and types of activity affect depression symptoms and diagnosis.
A study of 23,517 participants found that greater habitual physical activity was associated with less severe depressive symptoms among people with genetic vulnerability to depression.
The study found no significant interaction between genetic risk and physical activity for the likelihood of a formal major depressive disorder diagnosis.
Researchers analyzed whole-genome sequencing, electronic health records and Fitbit activity data from the US National Institutes of Health’s All of Us research program.
The observational findings do not establish that physical activity causes lower symptom severity or reduces genetic risk.
- Who
- Researchers led by He et al. studied 23,517 participants in the All of Us research program.
- What
- The study examined links between genetic risk, physical activity and major depressive disorder diagnosis and symptom severity.
- When
- Published in 2026; the article was published on October 12.
- Where
- The NIH’s All of Us research program.
- Why
- To investigate how habitual physical activity relates to genetic vulnerability to depression and depression outcomes.
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- Participants
- 23,517
- Research program
- NIH’s All of Us
- Activity data
- Fitbit records covering an average of 582 days
- Study publication
- Nature Mental Health, 2026
- Study design
- Observational
Sources
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