Children playing (IMAGE) University of South Australia Caption Moderate-to-vigorous physical exercise is 2-6 times more potent than sleep or sedentary time Credit Unsplash Usage Restrictions https://unsplash.com/license 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.