The following article, published in Canadian Medical Association Journal, evaluates effects of 3 resident schedules on patient safety, resident well-being, and continuity of care among ICU resident physicians. Variation in shift duration (24-, 16- or 12-h) did not result in adverse events or affect residents’ sleepiness during day- or nighttime. Most of the preventable adverse events occurred with the 12-hour schedule and mortality rates were similar for the 3 schedules. While burnout was similar among all shift groups, residents’ somatic symptoms were more severe and more frequent with the 24-hour schedule. ICU staff rated residents’ knowledge and decision-making worst with the 16-hour schedule. Overall, shorter duty schedules are not directly buttressed by the findings and the authors highlight trade-offs between residents’ symptoms and multiple secondary measures of patient safety.