The fitness tracker on your phone or wrist may be doing more than just monitoring your steps -- it could kick them up a notch.
원문출처 : https://www.cnn.com/2022/01/31/health/physical-activity-monitors-increase-study-wellness/index.html
원문출처 : https://www.cnn.com/2022/01/31/health/physical-activity-monitors-increase-study-wellness/index.html