MedicalResearch.com Interview with: Jakob Weitzer MSc Department of Epidemiology Center for Public Health Medical University of Vienna Vienna, Austria  MedicalResearch.com: What is the background for this study? Response: Chronic insomnia is a highly prevalent, often underdiagnosed and undertreated disease. Previous research has linked dispositional optimism to a better sleep quality and to insomnia symptoms, and showed that optimism can be trained. Since we think that positive psychology plays an important role for our health we wanted to further shed light on this topic.  (more…)