I do it fairly regularly.
Try doing it after a 12-hour plane flight, by staying up the night you get back and then having to go to work the next day - manual labour painting houses, no less.
That certainly kills jetlag, at least... I was up for 48 hours, give or take, then BAM, slept perfectly.
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not really back, you didn't see me, i was never here shhhhhh
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