Jesús Montero-Marín

Using clinical and genetic data from more than 10,000 Australians with depression, an international team has found that nearly 25 per cent suffered from what they have termed ‘circadian depression’ – a subtype previously proposed by the scientific community that is characterised by disrupted sleep-wake cycles, reduced daytime activity and low energy levels. In the study, those identified as having this form of depression reported an earlier age of onset, more severe clinical features and weight gain during depressive episodes. The authors, whose study is published in The British Journal of Psychiatry, state that these findings “support the apparent validity and potential clinical utility of a circadian subtype of depression as a clinical profile”.

Research involving more than 200 patients with depression, whose symptoms had not improved after NHS talk therapy shows that those who took part in eight group sessions of mindfulness-based cognitive therapy saw their depressive symptoms reduced, compared with those who received treatment as usual. The study is published in The Lancet Psychiatry.