U.S. researchers said Thursday they have found important physical evidence that sleep helps consolidate and strengthen new memories.
Gan Xiangwei used to stand guard at Peking University (PKU), one of China's most prestigious institutions, but has now realized his dreams teaching primary school children in Beijing.
Singapore's Health Ministry is looking at the possibility of banning point-of-sale display of tobacco products in stores, Health Minister Gan Kim Yong said on Tuesday.
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