Dr. Anna Weighall Clip (2 of 3) (AUDIO) University of Leeds Your browser does not support the audio element. Caption In this clip Dr. Weighall describes the impact of a lack of sleep on a child's performance at school. Credit University of Leeds Usage Restrictions None License Licensed content 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.