Actimetry Sensor (IMAGE) Brigham and Women's Hospital Caption Using a wristwatch-like device, researchers detected fluctuations in the daily motor activity of older adults that could predict increased risk of deteriorated quality of life or death years later. Credit Peng Li/Brigham and Women's Hospital Usage Restrictions Reporters may use this image in news coverage of this study with credit to Peng Li, Brigham and Women's Hospital 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.