“…3 Another report, published in Nature, found that staying awake for 24 continuous hours impairs cognitive psychomotor ability to the same extent as a blood alcohol level of 0.1%, which is at or above the legal limit in every state. 4 Other studies have demonstrated that well-rested physicians tend to outperform those who are sleep deprived in tests of memory, 5 concentration, 6 visual attention, 7 mathematics, 8 and overall motivation. 9 The effects of sleep in graduate medical education were recently reviewed by a conference entitled "Sleep, 10 underscored the importance of physiologic circadian rhythms in cognitive performance.…”