fitbit sex
I cherry picked some of the most interesting ones.
The image speaks for itself. (Fitbit tracks your heart rate during 'sports' activities)
I think an average 109 bpm is low!?
Would like to see the heart rate of the guy and then assess who's doing the work...
Some other interesting ones: This last one is really beautiful:
All sea routes from old journals plotted to generate a map of the world...
