说到髋部骨折，对美国老年人来说，最危险的地方原来是他们的家；近60%的摔倒危险会发生在患者住所内或周围。
When it comes to hip fractures, the most dangerous place for elderly Americans, it turns out, is their homes; nearly 60% of these dangerous spills will occur in or around the patient's domicile.
一项研究表明，每周食用一两块高级巧克力，可使中老年妇女患上心脏衰竭的几率降低近三分之一。
One or two servings of good-quality chocolate a week reduced the risk of middle-aged and elderly women developing the condition by almost a third, a study found.
威廉姆斯的研究小组进行了“全基因组关联研究”(genome wide association study)，他们将近4000名老年痴呆症患者的遗传密码与近8000名健康人的基因组进行了对比。
Williams's team conducted a "genome wide association study", in which the genetic codes of nearly 4, 000 Alzheimer's patients were compared with the genomes of almost 8, 000 healthy individuals.
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