Delayed High School Start Times in Seattle Increase Sleep, Grades and Attendance (video) American Association for the Advancement of Science Share Print E-Mail Loading video... Caption Co-author Horacio De La Iglesia discussing their study about the benefits of delayed school start time in teens. Credit Co-author Horacio De La Iglesia discussing their study about the benefits of delayed school start time in teens. Usage Restrictions Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. 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.