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死亡预告?研究称扫描大脑至多提前7年预知死亡风险

2017-04-27 08:15:46   环球时报

英国科学家发现,利用磁共振成像判断大脑年龄至多可以提前7年预知死亡风险。

英国帝国理工学院神经科学家利用电脑软件分析大脑的磁共振成像,以大脑组织容量多少为依据判断人们的年龄。他们以1936年669名73岁老人的大脑扫描图像实验,发现电脑生成年龄比实际年龄越大,在80岁前死亡的几率越高。

研究领头人詹姆斯·科尔说:“如果大脑老于你的实际年龄,那可能预示着你的身体有不妙的事情发生或已经发生。”大脑老于实际年龄的人可能出现肺功能较弱、走路更慢以及抓握力减弱等迹象。

研究人员希望未来用这种手段预测人们的死亡风险,并提醒高风险人群及早采取健康生活方式。相关研究结果发表于英国《分子精神病学》杂志。

目前,这种检测手段仍有较大误差,不可用于大规模筛查。另有科学家指出,无论死亡风险如何,所有人都应该尽可能坚持健康生活方式。(袁原)【新华社微特稿】

责任编辑:孙鑫鑫 CN066
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