“…Also, sensors placed around the throat are not unobtrusive, and people may find it uncomfortable. Most importantly, wearable device user adherence drops over time [19] , [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] , [38] , [39] .…”