According to a study in the September issue of the Journal of Clinical Sleep Medicine, stronger evening preference and less improvement in sleep efficiency independently predicted less reduction in depressive symptom severity following cognitive behavioral therapy for insomnia (CBT-I). According to the authors, the study raises the possibility that the effect of CBT-I on depressive symptoms could be enhanced by assessing and addressing circadian factors.
Read the study in JCSM: Chronotype and Improved Sleep Efficiency Independently Predict Depressive Symptom Reduction after Group Cognitive Behavioral Therapy for Insomnia
