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家住郊区的通勤族注意了，以车代步能让双脚得到休息，但是司机的大脑却可能因为长时间缺乏“运动”而退化。科学家警告说，每日驾车时间超过两小时会导致智力下降，长此以往会加速大脑老化。 Driving for more than two hours a day negatively affects IQ levels, scientists have warned. 科学家警告称，每日驾驶时间超过2小时会对智商产生消极影响。 In what might come as unwelcome news for middle-aged commuters, a recent study found that long periods behind the wheel could speed up the effects of age on the brain. 最近一项研究发现，长期驾车会加速大脑老化，这对中年通勤族而言并非好消息。 The researchers said that the results could be explained by the fact that the mind is less active on long car journeys. 研究人员表示，产生这一结果的原因可能是在长时间驾驶过程中，大脑不如往常活跃。 The mammoth project saw more than half a million Britons aged 37-73 studied over a period of five years. 这个规模庞大的研究项目在五年间观察了超过50万名37岁至73岁的英国人。 Out of these some 93,000 of them drove more than two or three hours a day. 他们中有约93000人每日驾驶时间超过两三个小时。 Researchers found that not only did this proportion of subjects typically have lower brainpower to begin with but their IQ score declined more rapidly over the course of the study than those who did little or no driving. | 
