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科学研究给老年的全新定义:60岁只是中年

2015-05-04 严炎 刘星 凤凰科技

据科学日报报道,根据发表在期刊《公共科学图书馆·综合》上的一项最新研究,寿命的快速增长并不一定会导致人群快速衰老。这项反直觉的发现产生于将国际应用系统分析研究所(International Institute of AppliedSystem Analysis,简称IIASA)提出的对衰老的最新测量应用于截止2050年未来欧洲人口预测问题上。寿命的快速增长并不一定会导致人群快速衰老。“年龄可以被定

据科学日报报道,根据发表在期刊《公共科学图书馆·综合》上的一项最新研究,寿命的快速增长并不一定会导致人群快速衰老。这项反直觉的发现产生于将国际应用系统分析研究所(International Institute of AppliedSystem Analysis,简称IIASA)提出的对衰老的最新测量应用于截止2050年未来欧洲人口预测问题上。



寿命的快速增长并不一定会导致人群快速衰老。

“年龄可以被定义为已经生活过的时间,或者被调整为加入还将生活的时间。如果你认为一个人年迈与否的标准不是因为他已经65岁了,而是还考虑了他剩下的寿命,那么人类寿命增加的越快,衰老的程度反而越慢,”带领进行这项研究的IIASA世界人口计划执行主任谢尔盖·谢尔博(Sergei Scherbov)这样解释道,他与IIASA以及纽约州立大学石溪分校的研究人员沃伦·桑德森(Warren Sanderson)合作进行了这项研究。

对年龄的传统测量只是将超过某一特定年龄,往往是65岁的人定义为老年人。但由谢尔博、桑德森和同事进行的一项先前研究展示了传统的定义导致很多人被划分为“年老”的行列,尽管他们具有很多更年轻的人所特有的特征。

“我们认为年老这个定义已经随着时间的推移发生了改变,随着人们过着更长寿、更健康的生活,这一定义还将继续发生改变,” 谢尔博表示。“现在60岁的人可能只是中等年纪,而在200年前,60岁已经是非常年迈的年纪。”

桑德森解释道:“晚年的开始时间非常重要,因为它常被用作日益增加的残疾和依赖性,以及日益减少的劳动力参与的指标。在我们调查不同国家和不同时期时,调整晚年开始的时间至关重要,这不仅对于科学理解人口老龄化非常重要,更有利于与现有人口状况保持一致的政策制定。”

在这项最新研究里,研究人对比了利用传统测量和最新年龄测量所定义的“老”的人群,前者将年龄高于65岁的人定义为“年老”,而后者还考虑了寿命的变化。

研究调查了欧洲未来人口老龄化的三种情景,使用了三种不同的寿命增长速率,从无增长到每十年增长1.4年,这一数据是由维特根斯坦中心欧洲人口数据表预测的。结果显示,正如预计的,如果65岁被定义为“年老”的开始,那么无论时间、地点,寿命的快速增长都会导致人口快速老龄化。然而,如果使用了新的测量年龄的方法,那么寿命的快速增长反而会减慢人口老龄化。

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1949290, encodeId=593019492909b, content=<a href='/topic/show?id=5ed95833172' target=_blank style='color:#2F92EE;'>#新定义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58331, encryptionId=5ed95833172, topicName=新定义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Feb 29 15:35:00 CST 2016, time=2016-02-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23061, encodeId=621e23061ab, content=为延迟退休提供支持证据, beContent=null, objectType=article, channel=null, level=null, likeNumber=178, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4ddd1621320, createdName=zdl0016, createdTime=Sat May 09 19:21:00 CST 2015, time=2015-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22680, encodeId=bd5822680d0, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Tue May 05 22:54:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22643, encodeId=d56a22643cb, content=好吧,我还是少年!, beContent=null, objectType=article, channel=null, level=null, likeNumber=258, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22644, encodeId=a4b122644bd, content=要是身体也年轻就好了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=185, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22591, encodeId=0cf12259156, content=以后没有老龄化问题了, beContent=null, objectType=article, channel=null, level=null, likeNumber=184, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96871613250, createdName=medcardio, createdTime=Mon May 04 20:56:00 CST 2015, time=2015-05-04, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1949290, encodeId=593019492909b, content=<a href='/topic/show?id=5ed95833172' target=_blank style='color:#2F92EE;'>#新定义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58331, encryptionId=5ed95833172, topicName=新定义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Feb 29 15:35:00 CST 2016, time=2016-02-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23061, encodeId=621e23061ab, content=为延迟退休提供支持证据, beContent=null, objectType=article, channel=null, level=null, likeNumber=178, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4ddd1621320, createdName=zdl0016, createdTime=Sat May 09 19:21:00 CST 2015, time=2015-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22680, encodeId=bd5822680d0, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Tue May 05 22:54:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22643, encodeId=d56a22643cb, content=好吧,我还是少年!, beContent=null, objectType=article, channel=null, level=null, likeNumber=258, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22644, encodeId=a4b122644bd, content=要是身体也年轻就好了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=185, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22591, encodeId=0cf12259156, content=以后没有老龄化问题了, beContent=null, objectType=article, channel=null, level=null, likeNumber=184, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96871613250, createdName=medcardio, createdTime=Mon May 04 20:56:00 CST 2015, time=2015-05-04, status=1, ipAttribution=)]
    2015-05-09 zdl0016

    为延迟退休提供支持证据

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1949290, encodeId=593019492909b, content=<a href='/topic/show?id=5ed95833172' target=_blank style='color:#2F92EE;'>#新定义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58331, encryptionId=5ed95833172, topicName=新定义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Feb 29 15:35:00 CST 2016, time=2016-02-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23061, encodeId=621e23061ab, content=为延迟退休提供支持证据, beContent=null, objectType=article, channel=null, level=null, likeNumber=178, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4ddd1621320, createdName=zdl0016, createdTime=Sat May 09 19:21:00 CST 2015, time=2015-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22680, encodeId=bd5822680d0, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Tue May 05 22:54:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22643, encodeId=d56a22643cb, content=好吧,我还是少年!, beContent=null, objectType=article, channel=null, level=null, likeNumber=258, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22644, encodeId=a4b122644bd, content=要是身体也年轻就好了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=185, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22591, encodeId=0cf12259156, content=以后没有老龄化问题了, beContent=null, objectType=article, channel=null, level=null, likeNumber=184, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96871613250, createdName=medcardio, createdTime=Mon May 04 20:56:00 CST 2015, time=2015-05-04, status=1, ipAttribution=)]
    2015-05-05 huaxipanxing

    呵呵

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1949290, encodeId=593019492909b, content=<a href='/topic/show?id=5ed95833172' target=_blank style='color:#2F92EE;'>#新定义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58331, encryptionId=5ed95833172, topicName=新定义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Feb 29 15:35:00 CST 2016, time=2016-02-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23061, encodeId=621e23061ab, content=为延迟退休提供支持证据, beContent=null, objectType=article, channel=null, level=null, likeNumber=178, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4ddd1621320, createdName=zdl0016, createdTime=Sat May 09 19:21:00 CST 2015, time=2015-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22680, encodeId=bd5822680d0, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Tue May 05 22:54:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22643, encodeId=d56a22643cb, content=好吧,我还是少年!, beContent=null, objectType=article, channel=null, level=null, likeNumber=258, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22644, encodeId=a4b122644bd, content=要是身体也年轻就好了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=185, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22591, encodeId=0cf12259156, content=以后没有老龄化问题了, beContent=null, objectType=article, channel=null, level=null, likeNumber=184, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96871613250, createdName=medcardio, createdTime=Mon May 04 20:56:00 CST 2015, time=2015-05-04, status=1, ipAttribution=)]
    2015-05-05 yydlt

    好吧,我还是少年!

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1949290, encodeId=593019492909b, content=<a href='/topic/show?id=5ed95833172' target=_blank style='color:#2F92EE;'>#新定义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58331, encryptionId=5ed95833172, topicName=新定义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Feb 29 15:35:00 CST 2016, time=2016-02-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23061, encodeId=621e23061ab, content=为延迟退休提供支持证据, beContent=null, objectType=article, channel=null, level=null, likeNumber=178, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4ddd1621320, createdName=zdl0016, createdTime=Sat May 09 19:21:00 CST 2015, time=2015-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22680, encodeId=bd5822680d0, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Tue May 05 22:54:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22643, encodeId=d56a22643cb, content=好吧,我还是少年!, beContent=null, objectType=article, channel=null, level=null, likeNumber=258, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22644, encodeId=a4b122644bd, content=要是身体也年轻就好了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=185, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22591, encodeId=0cf12259156, content=以后没有老龄化问题了, beContent=null, objectType=article, channel=null, level=null, likeNumber=184, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96871613250, createdName=medcardio, createdTime=Mon May 04 20:56:00 CST 2015, time=2015-05-04, status=1, ipAttribution=)]
    2015-05-05 yydlt

    要是身体也年轻就好了!

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1949290, encodeId=593019492909b, content=<a href='/topic/show?id=5ed95833172' target=_blank style='color:#2F92EE;'>#新定义#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=117, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58331, encryptionId=5ed95833172, topicName=新定义)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Mon Feb 29 15:35:00 CST 2016, time=2016-02-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=23061, encodeId=621e23061ab, content=为延迟退休提供支持证据, beContent=null, objectType=article, channel=null, level=null, likeNumber=178, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4ddd1621320, createdName=zdl0016, createdTime=Sat May 09 19:21:00 CST 2015, time=2015-05-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22680, encodeId=bd5822680d0, content=呵呵, beContent=null, objectType=article, channel=null, level=null, likeNumber=173, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Tue May 05 22:54:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22643, encodeId=d56a22643cb, content=好吧,我还是少年!, beContent=null, objectType=article, channel=null, level=null, likeNumber=258, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22644, encodeId=a4b122644bd, content=要是身体也年轻就好了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=185, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=yydlt, createdTime=Tue May 05 17:36:00 CST 2015, time=2015-05-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=22591, encodeId=0cf12259156, content=以后没有老龄化问题了, beContent=null, objectType=article, channel=null, level=null, likeNumber=184, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=96871613250, createdName=medcardio, createdTime=Mon May 04 20:56:00 CST 2015, time=2015-05-04, status=1, ipAttribution=)]
    2015-05-04 medcardio

    以后没有老龄化问题了

    0

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在髋部骨折中,股骨转子间骨折髓内固定和股骨颈骨折关节置换术患者围手术期血红蛋白下降水平往往同术中失血量不一致,国外有学者针对此类现象提出“隐性失血”概念,并认为此种巨大变化可能同骨折本身和手术造成的隐性失血相关。 髋部骨折隐性失血的原因目前并不明确,Pattison等专家认为,隐性失血是发生了溶血所致;Mcmanus等专家提出,隐性失血的原因是由于血液大量进入组织间隙,其直接的支持依据是使用

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听力障碍与认知能力下降的相关性,早已被过去的研究所证实。然而,人工耳蜗植入对重度聋老年人患者中对认知能力的改善效果,则尚无相关研究报道。因此,来自法国的Isabelle Mosnier博士在接受人工耳蜗手术治疗的老年听力障碍的患者中,对听力重建与认知功能恢复之间的关系进行了分析研究。研究人员对10个三级转诊中心从2006年9月1日至2009年6月30日的听力障碍患者进行前瞻性纵向研究。参

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全世界每年发生一百六十五万例髋部骨折,随着人口老龄化发展,该数字将以每年25%的速度增加。但是随着人们对骨质疏松和摔伤的关注,近来髋部骨折发生率较前降低。髋部骨折尽管手术操作不甚复杂,但由于髋部骨折多见于老年患者,所以患者预后较差。髋部骨折严重影响日常活动、降低生活质量,其中1/3患者在术后一年内死亡。 由于此类患者常有多种并存病,其治疗对临床医生构成巨大挑战。为了改善预后,对该类患

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目标:尽管在白种人群中研究报道,摄入水果和蔬菜(F&V)对骨质是有好处的,但是这个研究在亚洲人群中尤其是老年人中却缺乏数据而不能定论。因此我们在中国老年人群中探究水果和蔬菜摄入量与老年人骨质状态,并且探究潜在的作用机理。设计、环节、参与人员:该实验采用普查及横断面研究,参与人员是香港4000位年龄为大于65岁(含65岁)的老人。方式:我们根据大家日常的F&V习惯摄入量设计了一个有效

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