Child on pool ladder (IMAGE) University of Delaware Caption A recent study by University of Delaware researchers suggests aerobic exercise, such as swimming, can boost kids’ vocabulary growth. Credit Katy O'Connell, University of Delaware Usage Restrictions None License Original 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.