Reading Protocols by @hubermanlab, which is great. A proposed protocol to study for book 2: An observed but understudied longevity practice is dedicating a substantial amount of time over many years to art (creating, collecting, curating, etc). I meet an outlier number of the most sharp, energetic octogenarians+ in the art world (& rarely outside of it). Something about time dedicated to thinking about art seems to increase lucid health span significantly.