They found that adolescents who spent a very small amount of time on digital devices—a couple of hours a week—had the highest wellbeing.

他们发现花很少时间玩电子设备的青少年——每周一两个小时——幸福感最高。

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In response to past critics, Twenge and her co-researchers stress they are not trying to prove that the use of digital devices reduces young people's wellbeing.

在回应过去的批评时，特温格和她的同事强调，他们并没有试图证明使用电子设备会降低年轻人的幸福感。

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Mr Bauerlein fears that, far from opening new vistas for learning and awareness, digital technology has fostered a level of public ignorance that now threatens not just our competitive wellbeing but our democracy as well.

ECONOMIST: Will reading and writing remain important?