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Inadequate sleep causes more than $400 billion in economic losses annually in the United States and results in 1.23 million lost days of work each year, researchers have found. 研究人员发现，睡眠不足导致美国每年经济损失超过4000亿美元，并造成每年损失123万个工作日。 The impact of chronic sleeplessness in the United States far exceeds the costs in other industrialized countries. The runner-up, Japan, loses as much as $138 billion annually to sleeplessness among workers, but that represents a greater share of its economy, researchers at the RAND Corporation found. 慢性失眠对美国的影响远远超过对其他工业国家。兰德公司的研究人员发现，排名第二位的日本，每年因工人睡眠不足而损失1380亿美元，但这一数字在日本经济中所占的比重更大。 | 
