Earlier quoted context omitted.
Even more disconcerting is the sleeping culture/routine throughout medical residency and fellowship; arguably, the most important stages of medical education, where doctors in training learn the hands-on skills to practice medicine. Despite the importance of learning during this stage, individuals are routinely sleep-deprived: "20% of all residents reported sleeping an average of 5 hours or less per night, with 66% a…
To some extent the sleep deprivation is a weeding process/learning experience in and of itself. Being able to perform under stress/lack of sleep is a good quality in a doctor.
(just for kicks, if you worked 10hour days for 7 days a week that is only 70 hour work week... doctors work at least 12 hour days, and usually 16 hour days to get to the full 80 hours!)
Oh and as far as weeding out?
Most 'weeding' out happens first and second year of medical school. In my class alone about 10% of the class failed first year exams, and they were forced to repeat or retake the whole year. (which SUCKS when you just paid $37,000 for a year of school that meant nothing). Then Second year weeding happens again with STEP1 licensing exam:
"Overall pass rates for first time USMLE Step 1 test takers are: 92% for U.S. M.D. medical school graduates, 81% for U.S. D.O. osteopathic medical school graduates, and 73% for international medical school graduates" http://en.wikipedia.org/wiki/United_States_Medical_Licensing...
Fail a year or a board exams? You pretty much can only be a psychiatrist or family doctor with little or no hope of every specializing.