Exactly. Sooner or later you have to consider the ramifications that will have on your body after a whole career of disrupting your circadian rhythm while traveling thru multiple time zones around the world. All of that comes at a price against your health, you just have to figure out what that number is for you and if it is worth it in the long run after a 20+ year career. And who knows, maybe for some it is worth the extra $XX,XXX per year.