Scientists Discover a New Type of Depression That Common Antidepressants May Miss

For some people with hard-to-treat depression, the body’s internal clock may help explain why standard antidepressants fall short. University of Sydney researchers have identified a proposed subtype called “circadian depression,” marked by disrupted sleep and daily rhythms. It accounted for nearly a quarter of participants in a study of more than 10,000 Australians with severe, [...]