R 40%~50%機率跟遺傳有關 40%~50%機率跟遺傳有關 looking for such genetic hallmarks of depression for years Multiple genes have been associated with depression genetically more likely to get depression genetic hallmarks of depression for years genetics can play some role genetic hallmarks of depression for years looking for such genetic hallmarks of depression for years manic depression looking for such genetic hallmarks of depression for years genetic hallmarks of depression for years "Overview of the Genetics of Major Depressive Disorder" genetics can play some role Multiple genes have been associated with depression looking for such genetic hallmarks of depression for years looking for such genetic hallmarks of depression for years genetic hallmarks of depression for years looking for such genetic hallmarks of depression for years twins suggested a heritability of 40 to 50