The researchers checked the cholesterol levels of more than 3,600 British civil servants and gave them memory tests at an average age of 55 and again at 61.

 
  • 研究人员们检查了胆固醇水平超过3,600的英国公务员,并且在平均年龄55岁时以及再次在平均年龄61岁时给他们进行记忆测试。
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