I predict that in 10 years, more people than not will be wearing a smart watch of some type that will continuously be tracking vitals. You'll probably even be offered a free one by your employer or health provider.

Average heartrate gradually going up over the last few weeks? Your doctor's office will ping you to drop by. Sleep patterns have been erratic lately? Send down an electronic questionnaire to see what's up. You see? If you unveil the symptoms sooner, you can treat them sooner. That makes sense. $$$.