Citizens of the world's wealthiest countries may live longer than previously predicted, according to a study sponsored by the NationalInstitute on Aging.
美国国家老龄化研究所赞助的一项研究显示，世界最富裕国家的居民可能比此前预计的寿命更长。
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The study, conducted by diabetes researchers at the NationalInstitute on Aging, involved healthy, normal-weight men and women in their 40s.
这项研究，由国家衰老研究所的糖尿病研究员提供，涉及健康、体重正常、40岁的的男性和女性。
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The research was supported by the Gallup Organization and the NationalInstitute on Aging.