Now think about your life’s purpose. Are you working towards it? Have you chosen a culture of excellence? Because if you aren’t, the world is missing out on whatever it is you do best. It may not be a matter of life and death (although it’s possible that it is), but it will still make a difference to someone.
When I was in the military, I took a performance test that was disguised as an advanced training course. The test was designed to weed out the best people to pursue a new career in diving. It was an impossibly strenuous course, and we operated on little to no sleep and limited nourishment.