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Using a mobile phone for 8 minutes before bed gives you an hour of buzz, according to a study ！
据北京青年报报道，美国近日一项调查显示，睡前玩手机8分钟会让大脑持续兴奋1小时。医学研究发现，视网膜的内生感光视神经细胞只要受到蓝光8分钟刺激，就会让身体持续兴奋超过1小时，造成生物钟的混乱。Digital screen time before bed can have a negative impact on the quality of your sleep. A US study found t
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Omicron wave may have peaked, South Africa says 2021-12-31 21:00
New retail development and the development of the Internet at the same time, and its core is the construction of information technology, which involves large data. For example, there are about one hundred million parcels per day, which are crucial to the efficient use of these data.
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Omicron wave may have ···
New retail development and the development of the Internet a···
2021-12-29362
Xi'an: Chinese city under lockdown as Covid cases rise 2021-12-23 21:00
Since the acquisition of e Feng nest stack, express cabinet industry to a single large hope has little market gradually clear, against the entire industry is the basic and the Post Courier easy Feng nest, the next is to rely on the upstream and downstream resources, business model and behind the cha
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Xi'an: Chinese city un···
Since the acquisition of e Feng nest stack, express cabinet ···
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