OMG! Night owls at higher risk of diabetes

The study examined sleeping habits and metabolism in 1,620 participants in the population-based cohort Korean Genome Epidemiology Study (KoGES). The study subjects were between the ages of 47 and 59. Participants responded to questionnaires about their sleep-wake cycle, sleep quality and lifestyle habits such as exercising. Researchers took blood samples to assess participants' metabolic health. In addition, the study subjects underwent scans to measure total body fat and lean mass, and CT scans to measure abdominal visceral fat.