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Catching forty winks on World Sleep Day

(chinadaily.com.cn) Updated: 2015-03-21 06:18 Comments

Catching forty winks on World Sleep Day

Residents in fancy pajamas display the scientific way to get deep sleep and keep psychologically healthy at a street in Changsha, Hunan province, March 20, 2015, a day ahead of World Sleep Day. [Photo/CFP]

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