Marmoset (IMAGE) Texas Biomedical Research Institute Caption Marmosets in the study were monitored with Fitbit-like devices. Credit Texas Biomedical Research Institute Usage Restrictions proper credit to Texas Biomed 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.