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经常锻炼可以减缓大脑衰老 来自BBC英语 00:00 01:00 Keeping your mind sharp might be as simple as taking a brisk walk a few times a week. 如何保持聪明的头脑，只需每周快步走几次。 A new study suggests regular moderate exercise improves thinking and memory skills for people over the age of 50. 新的研究表明，经常做运动能提高50岁以上人群的思考和记忆能力。 Physical activity has already been shown to slow down the decline in brain power that comes with the age,but findings recently published in the British Journal of Sports Medicine are the first to point out that it actually boosts mental performance. 体能运动已经被证明能够减缓因年纪增长而带来的大脑衰老问题，但是最近在英国体育医学杂志上发布的研究首次指出运动能提高大脑能力。 Experts at the University of Canberra based their findings on dozens of other recent studies. 堪培拉大学的专家是在基于其他多项研究的基础上提出了新的想法。 They highlighted the benefits of combining both resistance training and aerobic exercises like fast walking or cycling. 他们强调了结合耐力训练和，快走、骑自行车等有氧运动的益处。 The study’s lead author said,“ Aerobic exercise was associated with enhanced cognitive abilities, while resistance training was associated with improvements in executive function, memory and working memory. ' 这项研究的领头人称，“有氧运动和认知能力的提高有关，耐力训练和执行功能、记忆力以及工作记忆的改善有关。” Researchers suggest people over 50 spend 45 minutes to an hour every week on moderate to vigorous low-impact exercise. 研究人员建议50岁以上的人群每周进行45分钟至1小时的中度至高度低强度锻炼。
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