Originally Posted by HSLD

We all do what it takes to make some dough (hey, a really bad bread factory joke!). Anyway, working the so-called graveyard shift can take it's toll on your health although I don't know if it's long term or not. Inattention due to sleepiness could make you more prone to accidents - which of course could have long term effects.

You should do is learn all you can about Circadian Rhythm and Window of Circadian Low (WOCL) and how to mitigate the effects of a missed sleep opportunity.

After 15 years of flying exclusively long international flights I've found what works for me. And that's the key - what works for me may not work for someone else. I've seen routines that other guys swear by that would kill me. The bottom line is your body needs regular sleep, when you start missing sleep (rest periods) it hurts your body.

Here are a few Google searches to get you started - good luck!

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