1 Center for Wireless and Population Health Systems, University of California San Diego, San Diego, CA, USA; Exercise and Physical Activity Resource Center, University of California San Diego, San Diego, CA, USA; Atkinson Hall, University of California San Diego, La Jolla, CA 92093, USA. Electronic address: guillaumechevance@hotmail.fr.
2 Center for Wireless and Population Health Systems, University of California San Diego, San Diego, CA, USA; Exercise and Physical Activity Resource Center, University of California San Diego, San Diego, CA, USA; The Design Lab, University of California San Diego, San Diego, CA, USA.
3 The Shift Project, Paris, France.
4 Center for Wireless and Population Health Systems, University of California San Diego, San Diego, CA, USA; Exercise and Physical Activity Resource Center, University of California San Diego, San Diego, CA, USA.
5 Center for Wireless and Population Health Systems, University of California San Diego, San Diego, CA, USA.
6 Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA.
7 Impact Mill, A Living Lab for Sustainable Lifestyles, Tempe, AZ, USA.
8 École des hautes études en santé publique, Management des Organisations de Santé, Rennes, France.
9 Center for Wireless and Population Health Systems, University of California San Diego, San Diego, CA, USA; The Design Lab, University of California San Diego, San Diego, CA, USA; Research Center for Optimal Digital Ethics in Health, University of California San Diego, La Jolla, CA, USA.
10 Department of Behavioural Science and Health, University College London, London, UK.
11 Centre for Emerging, Endemic and Exotic Diseases, Royal Veterinary College, London, UK.
12 Center for Wireless and Population Health Systems, University of California San Diego, San Diego, CA, USA; The Design Lab, University of California San Diego, San Diego, CA, USA.
13 Department of Physical Activity Sciences, Université du Québec à Montréal, Montréal, QC, Canada; Research Center, University Institute of Mental Health at Montreal, Montréal, QC, Canada.