With research results showing the cumulative effects of sleep loss and its impact on productivity, doubt has been voiced about the accuracy of Steel's self-assessment.

随着研究结果显示睡眠不足的累积效应及其对生产力的影响，人们对斯蒂尔自我评估的准确性提出了质疑。

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"Exercise helps to reduce anxiety," one of the main causes of sleep loss.

焦虑是睡眠元凶之一，“锻炼身体有助于减焦虑。”

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The body reacts in this way because it sees sleep loss as a major source of stress.

身体以这种方式回应是因为他认为睡眠不足是压力的主要来源。

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But Drucker also urged those complaining of burnout and exhaustion to examine whether overwork or sleep loss was the real problem or whether they were just sick of their jobs.

FORBES: Should the Boss Send You to Bed?

Crash factors may include sleep loss, driving patterns -- early morning or late at night, for example, use of sedating medications, untreated or unrecognized sleep disorders, or consumption of alcohol.

CNN: How to combat drowsy driving

However, Dr Neil Stanley, of the University of Surrey, said sleep loss harmed spatial learning, although the brain could rise to the "spatial learning" challenge in the short-term it would struggle eventually.

BBC: Spatial memory works in a similar way in rats and humans