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This is the greatest mystery of our adult life: How can we spend all day typing at a computer and go home feeling exhausted? How could merely activating the small muscles of our fingers leave us craving the couch at the end of the day? 成年人的生活里最大的谜团之一：明明我们只是在电脑上打一天字，回家后怎么就“累成狗”？不过是对着屏幕动动手指，怎么能这么累，累到只想瘫在沙发上？ This question actually lies very close to one of the more hotly contested issues in psychology: What causes mental fatigue? Why is desk work so depleting? 这个问题实际上非常接近心理学中一个比较有争议的问题：什么导致心理疲劳？办公室工作何以让人如此疲劳？ "It is kind of a mystery, to be honest," said Michael Inzlicht, a University of Toronto psychologist who studies self-control, motivation, and fatigue. “说实话，这个问题差不多还是个谜团，”多伦多大学主要研究自我控制、动机和疲劳的心理学家Michael Inzlicht称。 But scientists do have some clues. There is a hypothesis for why we get so tired from work when we're not physically active. Let's dive in. 但科学家确实找到了一些线索。为什么在没有进行任何体力劳动时，我们还会因为工作而感到疲倦？以下是关于这个问题的一种假设，让我们来看看吧。 | 
