The two most worthwhile investments I made this year: one was getting femtosecond LASIK surgery on my eyes; the other was buying Whoop. I now have a much clearer understanding of my physical condition. I drank heavily last night and got up early this morning to catch a flight. Recovery hit 7%! I don't feel too bad physically. I think I'm still young and not afraid. But the actual data is far worse than I feel. Whoop is even better at reminding me to rest than my mother is.