Top 10 professions with worst sleep quality
Updated: 2014-03-21 08:16 (chinadaily.com.cn)No. 7 Blue-collar workers
Blue-collar workers rank seventh with 61.9 points on the list of professions with the worst sleep quality.
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Workers in blue uniform check product quality in an automobile accessory factory in Sichuan province on December 16, 2013. [photo/dfic.cn] |
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