Earlier Bedtimes Lead to Less Risk of Obesity as Teens (image) The Ohio State University Wexner Medical Center Share Print E-Mail Caption Mary Dumek reads a bedtime story to her two young children. A new study from The Ohio State University College of Public Health shows that preschoolers who go to bed at 9 pm or later are twice as likely to be obese as teenagers, compared to those who go to bed at 8 pm or earlier. Credit The Ohio State University Wexner Medical Center Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.