My wife is currently in the middle of a stretch of 26 days without a full day off. Thankfully she was home yesterday (after working 24 hours and getting a few hours sleep) so we got to hangout a bit. She worked from 6 am Saturday till 9 AM Sunday, came home, feel asleep in the car in the driveway she was so tired (thankfully not when she was driving!). I found her out there snoozing in the drivers seat and got her inside.
She had to get up at 3 AM today so she could get out the door by 4 am and drive 1 hour to where her rotation is. Thankfully she has the next three weekends off, including some vacation time coming up during labor day. But, man, I had no idea how much work doctors (specifically surgeons) have to do.