Green Excercise Better for Health (IMAGE) American Chemical Society Caption Just five minutes of exercise in a green nature setting, like these beautiful hills in Vermont, can boost mood and self-esteem. Credit Michael Bernstein, American Chemical Society 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.