据美国《新闻周刊》报道，皮尤研究中心最新调查显示，2008年到2010年间，社交网络的用户中数量增长最快的年龄群体是55岁到64岁之间的中老年人。
The age group that saw the fastest growth in social network use between 2008 and 2010 was the 55 to 64 crowd, according to a new survey from Pew Research, Newsweek reported.
《自然》杂志在7月27日公布的一项研究新成果显示，跟年轻人相比，中老年人大脑神经网络的互相联系和运作强度都更弱一些。
A new study published July 27 in the journal Nature shows the neural networks in the brains of the middle-aged and elderly have weaker connections and fire less robustly than in youthful ones.
它还具有治疗功能：机器人如今可用来帮助照看老年人；在日本，机器人出售用来诱使网瘾者脱离网络空间。
It can be therapeutic: robots are now used to help care for the elderly; in Japan, they're marketed as a way to lure addicts out of cyberspace.
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