Another issue to consider would be time zone differences; which is to say that when you fly in Asia you'd be 13 hours off your home clock. So when you get home you'd be physiologically out of whack [useless] for at least 2 days while trying to adjust your circadian rhythm. What that means is that you'll be waking up at 4AM, and at 2PM, when your wife wants you to go to the mall, you're still feeling like a zombie.
