The Dark Knight

The early bird may catch the worm, but it seems that night owls have more mental stamina. Scientists monitored the brain activity and hormone levels of both early risers and people who stay up late and had the subjects perform certain tests during their waking hours. Both groups scored the same on tests requiring attentiveness 90 minutes after waking, but 10 hours after rising, the self-described early birds felt sleepier, performed more slowly on tests, and showed reduced activity in brain areas linked to attention as compared to the night owls. Thus, it appears that night owls outlast early birds in the number of hours they can be awake before becoming mentally fatigued.So, what for wake up that early! XD