Lisa Tang, University of Guelph (IMAGE) University of Guelph Caption When parents are under stress, household rules about screen time often get abandoned, new University of Guelph research finds. Credit University of Guelph 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.