痴呆症常见的危险因素包括年龄、家族史和遗传病史。但最新研究指出,除此之外,还有另外一个因素可能会影响患痴呆症的可能性:居住在车水马龙的主干道旁边。加拿大一项新研究发现,由于空气中的污染物可能通过血液进入大脑,引发神经系统病变,住在交通繁忙地段附近的人患痴呆症的风险更高。
Living near a main road increases the risk of dementia, the first major research into air pollution and disease has shown.
首项研究空气污染与疾病关系的重要调查发现,住在主干道旁边有可能增加患痴呆的风险。
A decade-long study of 6.6 million people, published in The Lancet, found that one in 10 dementia deaths in people living within 50 metres of a busy road was attributable to fumes and noise.
该研究时长超过十年,参与样本超过660万人并发表在医学期刊《柳叶刀》上面。研究结果表明,在居住在嘈杂路段50米范围内的痴呆症死亡患者中,有十分之一的患者病因可归因为尾气和噪音。
There was a linear decline in deaths the further people lived away from heavy traffic.
结果表明,离车水马龙的道路越远,他们的死亡率越低,且呈直线下降。
Air pollution is already known to contribute to the deaths of around 40,000 people in Britain each year by exacerbating respiratory and heart conditions, while previous research showed emissions can cause brain shrinkage.
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