The largest genetic study of fibromyalgia ever conducted has identified 26 regions of the genome associated with the condition, and the strongest signal sits inside a gene most people have never heard of in this context: the one that causes Huntington's disease.
The study appeared in Nature Medicine on Tuesday. An international team analyzed genetic data from more than 2.5 million adults, roughly 55,000 of whom had a fibromyalgia diagnosis, making it several times larger than anything previously attempted in this condition.