Typically when people are chasing ideas in quest for some investment of time they are thinking of solutions to apply instead of problems to solve. I recommend looking at problems you actually have right now. Things that consume your time, require you to look things up, or things you find frustrating and solve for that one step at a time. If it provides immediate value to you then odds are it will benefit other people as well.
Yes I know what you mean. The heart rate thing is closest to a problem to solve, although probably a problem that needs a doctor involved. I think it could be useful and would probably pay for something that did it well myself. The reason is for chronic fatigue it is an interesting metric to follow. Say I am at the gym I can be warned to sit down for 20 minutes before carrying on.
I find with tech problems I have at work, the way I want to solve it is to ditch all the damn complexity :-). Maybe the solution is a book on how to convince your org to KISS lol.
