Scientists have identified an unusual form of depression associated with sleep disorders Researchers from the University of Sydney have identified a link between symptoms of depression and a disturbance in the body's biological clock. This condition is called "circadian depression". People with these symptoms may sleep 10 to 12 hours, have difficulty waking up in the morning, and feel tired even after a long period of rest. At the same time, by the evening they often have a surge of energy. Researchers found signs of this condition in almost a quarter of the 11,000 participants in the study. However, "circadian depression" is not yet recognized as an independent medical diagnosis. Similar symptoms can appear with sleep disorders and other diseases.

Scientists have identified an unusual form of depression associated with sleep disorders Researchers from the University of Sydney have identified a link between symptoms of depression and a disturbance in the body's biological clock. This condition is called "circadian depression". People with these symptoms may sleep 10 to 12 hours, have difficulty waking up in the morning, and feel tired even after a long period of rest. At the same time, by the evening they often have a surge of energy. Researchers found signs of this condition in almost a quarter of the 11,000 participants in the study. However, "circadian depression" is not yet recognized as an independent medical diagnosis. Similar symptoms can appear with sleep disorders and other diseases.