It turns out the early bird may get more than the worm. According to self-reports from college students, those who wake up earlier feel more optimistic and proactive than those who rise later. Other studies have found morning larks tend to be harder working and conscientious than night owls. (Still, it’s not clear whether waking up early actually makes someone more productive or optimistic.)

事实证明，早起的鸟儿或许真的就能吃到更多的虫子。根据大学生的自我报告，早起的人比晚起的人要更乐观积极。其他研究也发现，“早起鸟”比“夜猫子”更努力更自觉。（不过，早起是否真能让一个人变得更有效率或更加乐观，依然不甚清楚。）