i am an m2 that's looking at anesthesiology as a potential career, but i just have some questions about the residency. i know that it's 4 years, but what does the 1st year of "internship" entail? what are the work hours like during the residency? how competitive is the residency, and what kind of board scores do you need? if anyone has any input/advice, i'd really appreciate it. thanks!