@kdfrawg I haven’t done a lot of flying, but I did shift working for a while, and worked with people doing shift work for a long time. The system they used cycled 3 or 4 evenings - 4 or 3 mornings - 3 or 4 nights twice over 5 weeks. Repeat indefinitely. Some people seemed to handle it more easily than others, but there was a strong tendency for it to get harder with age. Most did ok before 30. Most struggled after 50. I was in my 20s when I did it and it was bad enough then.

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2017-06-28T15:01:05Z