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生育率为何下降?也许与你的手机有关系 (opens in new tab)

现代智能手机于2007年开始普及,同年美国生育率也开始下降,两项新研究试图验证这并非巧合。一种理论认为,智能手机减少了面对面社交,发生性行为和怀孕的可能性也随之降低。 Colin Clark for The New York Times 生育率下降并非只发生在美国。这一谜团如今已几乎成为全球性现象。

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