NexNote: Now that explains a lot about me. "A scientific research in Brazil revealed that those who sleep late at night are three times prone to develop symptoms of depression compared to individuals who go to bed early each night, even if the total number of sleeping hours are the same in both groups. Staying up late obviously is not healthy." http://globalnation.inquirer.net/cebudailynews/opinion/view/20091109-235154/Staying_up_late__is_not_healthy read more