I have worked an eighty hour week for years and then one week off as a hospital pharmacist. Prior to this in my oilfield days it was 14 days on or 28 days on (I was working offshore rigs) and then 14 or 28 days off. I loved it. On my days off my wife and I did anything we wanted to do.
Me = retired now and just teach kids how to fly. It is a pretty good gig.
As a Navy radioman, my favorite watch schedule was
the 2-2-2-80. It involved a ‘double back’ where you’d work 16 hours a day a few times, a few 8 hour days, then be off for 80 hours.