Scientists analyzed genetic data from more than 1.3 million individuals of European ancestry to understand restless legs syndrome. The research used genome-wide association analyses and examined brain MRI scans to find connections between the disorder and other health issues. This work was conducted using data from the UK Biobank and All of Us cohorts.
The study identified 15 new genetic locations linked to restless legs syndrome. Researchers also found that over 100 diseases, lifestyle factors, and biomarkers are significantly associated with the condition. These links help explain the disorder by connecting it to neurodevelopmental and synaptic programs in the brain.
Because this is a genetic analysis, it shows associations rather than proving that one thing causes another. The findings suggest complex links between restless legs syndrome and many other health areas. Readers should view these results as a map of connections that may help future treatments, not as proof that changing a lifestyle factor will cure the disorder.