I don't want to speak for the OP, but most people don't take a 16 hour flight ever in their life.
Yeah, 16 hours is crazy long. I would add that I found the best thing to do on both sides of a lengthy flight (say 6-8 hours) is exercise.
Yeah, 16 hours is crazy long. I would add that I found the best thing to do on both sides of a lengthy flight (say 6-8 hours) is exercise.