Not sure if can be considered a software essay, but a goldmine (imho) is Patrick McKenzie's - Don't Call Yourself A Programmer, And Other Career Advice:
I think Apple could do a lot of headway to trigger some neuro sensor motivation as wearing the watch throughout the day, then can likely get data and trigger when it knows you are more likely to do even a little exercise.
I started to put more emphasis on my personal health as I noticed that the COVID-19 pandemic has taken a lot of toll on both my physical and mental state.
The watch has been quite amazing in tracking my movement, heart rate, # of times standing up in a day and overall, has been quite influential in motivating me to do more physical related activities.
The WalkingPad allowed me to perform a lot of light exercises at home and it has been quite a handy companion in my journey to become a healthier person overall.
https://www.kalzumeus.com/2011/10/28/dont-call-yourself-a-pr...