Exercise and Diet (IMAGE) University of Nebraska-Lincoln Caption Nebraska researchers Karsten Koehler (second from right) and Christopher Gustafson (right) have found that a person's choice of post-workout snack -- an apple vs. a brownie, in a recent experiment -- can depend on when the choice is made. Study participants who decided before exercising were about one-third more likely to choose an apple than were those who decided afterward. Credit Craig Chandler, University of Nebraska-Lincoln 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.