Here is a graph of my watch’s interpretation of my stress levels over the past few months.
August is when I started on anti-depressants*. In September I started a salary negotiation with my now-ex Boss, which really stressed me out. October brought a few interviews and November had me starting a new job. January had me ‘resting’ a running injury, and February has me returning to almost daily running. It’s incredible to see what a difference regular exercise, or lack thereof, makes to my physically measurable stress levels.
*The graph probably exaggerates the practical reality a bit, because an initial side effect of the anti-depressants was a slowed heart rate (which has since gone back up to normal), which probably confused the readings a bit.
Rambles 
Even with antidepressants skewing results that’s a neat little tool.
LikeLiked by 1 person
Yes it’s interesting! It measures the interval between heart beats and looks at the variability of that to estimate physical stress.. It’s aimed towards athletic recovery (it’s a running watch), but it does correlate strongly with how I feel, so I think it’s pretty good for emotional stress too
LikeLiked by 1 person
I love looking at data, it’s so interesting, so much you can get from it.
LikeLiked by 1 person