A large-scale genetic study found 26 risk loci for epilepsy, a chronic brain disease with multiple forms, not all of them heritable. The work, by more than 300 authors from the International League Against Epilepsy (ILAE), investigated seven different subtypes of this neurological condition. “There are over 100 genes that we know can harbor mutations that cause epilepsy,” the co-corresponding author Gianpiero Cavalleri told BioWorld. These genes have rare forms that cause that epilepsy. However, “this particular GWAS is focused more on common forms of epilepsy,” he said.