因為沒睡夠，美國人一年損失4000多億美元

新近一項研究發現，美國勞動者睡眠不足導致的成本約為4110億美元，損失工作日達120萬個。

這項研究名為“睡眠為何重要——睡眠不足的經濟成本”，研究人員來自非盈利組織RAND Europe。這是該組織首次量化研究睡眠缺乏對經濟的影響。研究者發現，和每晚睡7到9小時的人相比，平均睡眠時間不足6小時的人死亡率高13%。

RAND Europe的該研究負責人、研報主筆馬可?哈福納說：“我們的研究顯示，缺少睡眠的影響很大。睡眠缺乏不僅影響個人的健康和快樂，隨著勞動者生產率降低，死亡率上升，全國經濟都會受到嚴重打擊。”

該研究調查了美國、英國、加拿大、德國和日本這五大經濟體，目前來看美國遭受的經濟損失最大。不過如果看相對損失，日本情況最嚴重。日本因勞動者睡眠不足造成的損失占國內GDP的2.92%，美國該比例為2.28%。

RAND Europe的上述研究于本周二發布。一天后，美國知名數字媒體《赫芬頓郵報》的聯合創始人阿里安娜?赫芬頓成立了新公司Thrive Global，旨在宣傳良好睡眠對提高生產力的重要性。 （財富中文網）

譯者：Pessy

審校：夏林

A lack of sleep among the U.S. workforce is costing approximately $411 billion and losing 1.2 million working days per year, a new study has found.

The study, titled ‘Why sleep matters – the economic costs of insufficient sleep’, was conducted by researchers at non-profit organisation RAND Europe and is the first of its kind to quantify the economic impact of sleep deprivation. Researchers found that a person who sleeps on average less than six hours a night has a 13 percent higher mortality risk than someone sleeping between seven and nine hours.

Marco Hafner, a research leader at RAND Europe and the report’s main author, said “Our study shows that the effects from a lack of sleep are massive. Sleep deprivation not only influences an individual’s health and wellbeing but has a significant impact on a nation’s economy, with lower productivity levels and a higher mortality risk among workers.”

The U.S., UK, Canada, Germany, and Japan were investigated as case study economies, with the U.S. sustaining by far the highest economic losses. In relative terms however, Japan suffers the largest economic loss, losing 2.92 percent of GDP due to sleep deprivation among its workforce, compared to the U.S. with 2.28 percent.

RAND Europe’s research was released on Tuesday, a day before Arianna Huffington launched her new company Thrive Global, which advocates the importance of better sleep for increased productivity.