When I was in residency, we had to complete on online training course on fatigue and depression.
The fatigue training course was kind of depressing (although the depression course wasn't fatiguing). The moral seemed to be:
1) You're definitely going to be tired during residency.
2) You need to use every moment of your free time for sleep. In fact, the following was a question:
You should use your free time to
(a) catch up on sleep
(b) spend time with family and friends
(c) pursue your hobbies
The answer was (a). You're not supposed to spend any time with family and friends or pursue any hobbies during residency.
3) Use caffeine to stay awake. They actually gave instructions on how to "use" caffeine, like it's a medication. You know, meth might help too.
4) If a resident gets into a car accident in New Jersey due to fatigue, they can be criminally prosecuted. So how the hell are you supposed to get home?