研究:睡得越多賺得越多


ANN@The China Post

眾所周知,睡眠會影響注意力、記憶力和認知力等影響工作的關鍵因素,這並不讓人意外。但是一項新研究發現,睡眠還有更值錢的作用。你一定不敢相信,多睡覺也能幫你漲工資!科學家們稱,額外的睡眠時間可以轉變為上千美元的薪水。

We all know sleep matters for job performance. After a week of vacation, you may find your work better than ever. But rack up a week of sleepless nights – say, following a polarizing presidential election – and you may find yourself struggling. 眾所周知,睡眠會影響工作表現。休假一周後,你會發現自己工作表現前所未有的好。假如你因為兩極分化的總統大選而持續失眠一周,那可能會非常痛苦。

It wouldn’t surprise anyone that sleep affects attention, memory and cognition – important factors in the workplace. But striking new research suggests the effect of additional sleep has a high monetary value. A paper – from Matthew Gibson of Williams College and Jeffrey Shrader of the University of California at San Diego, based on data from Jawbone, the fitness- and sleep-tracker company – says that additional time sleeping can translate into thousands of dollars in wages. 睡眠會影響注意力、記憶力和認知力等影響工作的關鍵因素,這並不讓人意外。但是一項引人注目的新研究發現,睡眠還有更值錢的作用。威廉姆斯學院的馬修•吉普森和加州大學聖地牙哥分校的傑夫瑞•施萊德基於健身睡眠記錄儀公司Jawbone的資料撰寫了一份研究報告,稱額外的睡眠時間可以轉變為數千美元的薪水。

In fact, they calculate that a one-hour increase in weekly sleep raises wages by about half as much as an additional year of education. 事實上,他們計算出每週睡眠增加1小時,薪水漲幅相當於多受一年教育的一半。

Now, the story is not so simple. Don’t think you can start to sleep more and you will instantly make more money. It’s more about the subtle interplay between how people schedule their lives, how much time they have available to sleep and how that affects worker performance and, ultimately, earnings. 事情沒那麼簡單。不要以為你開始多睡覺就能立刻賺得更多。關鍵是人們如何安排自己的生活、有多少時間可以睡覺以及這是如何影響員工表現並最終影響薪資,這些問題間微妙的關係才是重點。

To investigate how sleep affects worker wages, the researchers took advantage of a kind of natural experiment – sunset times across American time zones. Past research shows that people naturally end up sleeping longer when the sun sets earlier, for example in the winter, even if the person goes to bed well after dark. When the sun sets an hour later, it reduces nighttime sleep by roughly 20 minutes per week. 為了研究睡眠究竟怎樣影響員工工資,研究人進行了一項自然試驗——利用美國時區日落時間。過去的研究顯示,當日落較早時,人們的睡眠會自然而然變長,即使是天黑很久後才睡覺也一樣,比如冬季時。當日落較晚時,人們平均每週的睡眠時間大約減少20分鐘。

Within a single time zone, the time of sunset varies substantially, as the map below shows. For example, the sun sets about an hour and a half earlier in Mars Hill, Maine, than in Ontonagon, Mich., even though both are in the Eastern time zone. Because there shouldn’t be any significant differences in workers on the eastern or western edge of a time zone beyond the amount of time they sleep, researchers use this variation to calculate how much sleep influences wages. 在單一個時區裡日落時間相差很大,比如雖然同在東部時區,緬因州馬斯希爾的日落時間比密西根州昂托納貢的早一個半小時。因為不論在一個時區的東邊還是西邊,員工的睡眠時間應該沒有顯著差別,研究人員決定用日落時間的差異來計算睡眠對工資的影響。