<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          您現在的位置: Language Tips> Audio & Video> China Daily Media News  
             
           





           
          Frequent blood donation lowers cancer risk: Study
          [ 2008-04-10 10:59 ]

          Download

          Frequent blood donation is not harmful to your health, a new study confirms.

          "No one should worry that giving blood causes cancer," Dr Gustaf Edgren of the Karolinska Institutet in Stockholm, the study's lead author, told Reuters Health. "If anything, blood donation may actually be good for you."

          People who donate blood show lower cancer and mortality rates than their non-donating peers, Edgren and his colleagues note in their report, published in the Journal of the National Cancer Association, but the fact that blood donors tend to be healthier overall could mask any ill effects of frequent donation.

          There are also several mechanisms by which frequent blood donation could theoretically affect health, Edgren noted in an interview. For one, drawing blood causes the body to ramp up production of blood cells in the bone marrow. This accelerated cell division, or "mitotic stress," could increase the likelihood of malignancy in blood-forming tissues.

          Giving blood has also been shown to result in immune system changes, and some have suggested these immunologic effects could be associated with cancer.

          On the positive side, excess iron stores have been tied to heart disease and certain types of cancer, so people who have their blood drawn regularly may be depleting these stores and thus improving their health.

          To better understand how repeated blood donations affect health, Edgren and his team looked at data from Swedish and Danish blood banks and transfusion clinics containing records of individuals who donated blood at least once between 1968 and 2002, a total of 1,110,212 people.

          The investigators found no relationship between how frequently a person gave blood and their risk of cancer. However, among male donors, the risk of liver, lung, colon, stomach and throat cancer declined as the frequency of donations increased, which suggests that iron depletion may reduce cancer risk.

          Even a small excess risk of cancer associated with blood donation would be "a very serious matter," Edgren noted, because so many people donate blood.

          However, he added, "we've more or less made very clear that there is no excess risk of cancer associated with frequent blood donation."

          Questions:

          1. What does Dr Gustaf Edgren’s study show about the rates of cancer and mortality around people who donate blood?

          2. How does frequent blood donation affect one’s health?

          3. Does the frequency of blood donation affect one’s risk of cancer?

          Answers:

          1.The rates are lower than those who don’t donate blood.

          2.It forces the body to ramp up the production of red blood cells in the bone marrow.

          3.No.

          (英語點津  Celene 編輯)

          About the broadcaster:

          Frequent blood donation lowers cancer risk: Study

          Bernice Chan is a foreign expert at China Daily Website. Originally from Vancouver, Canada, Bernice has written for newspapers and magazines in Hong Kong and most recently worked as a broadcaster for the Canadian Broadcasting Corporation, producing current affairs shows and documentaries.

           

           
          英語點津版權說明:凡注明來源為“英語點津:XXX(署名)”的原創作品,除與中國日報網簽署英語點津內容授權協議的網站外,其他任何網站或單位未經允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883631聯系;凡本網注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯系,如產生任何問題與本網無關;本網所發布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請提供版權證明,以便盡快刪除。
          相關文章 Related Story
           
           
           
          本頻道最新推薦
           
          新加坡開展促友善全民教育活動
          小長假的前一天 virtual Friday
          英語中的“植物”喻人
          Burying loved ones deadly expensive
          經濟危機時期入讀哈佛難上加難
          翻吧推薦
           
          論壇熱貼
           
          “學會做人”如何翻譯
          做作怎么翻譯
          美國人電話留言精選
          大話西游中英文對白
          夜宵怎么翻譯比較地道

           

          主站蜘蛛池模板: 久久精品国产亚洲AV不卡| 在线中文字幕国产一区| 亚洲av日韩av综合在线观看| 国产91久久精品一区二区| 老熟妇欲乱一区二区三区| 欧美性猛交xxxx免费看| 国产欧美亚洲精品第一页在线| 午夜视频免费试看| 女同AV在线播放| 欧美成人h亚洲综合在线观看| 久久高清超碰AV热热久久| 99久久成人亚洲精品观看| 日韩一二三无码专区| 丰满人妻一区二区乱码中文电影网| 人妻少妇久久精品一区二区| 伊人色综合久久天天| japan黑人极大黑炮| 国产一区二区三区不卡观| 亚洲av成人一区二区三区 | 久久精品国产亚洲av久| 久久精品国产主播一区二区| 韩国亚洲精品a在线无码| 精品尤物TV福利院在线网站| 国产乱色国产精品免费视频 | 正在播放国产对白孕妇作爱| 免费看成人毛片无码视频| 免费无码成人AV片在线| 国产亚洲精品AA片在线爽| 久久综合国产精品一区二区| 亚洲天堂av 在线| 国产精品福利自产拍在线观看| 美女一级毛片无遮挡内谢| 激情综合五月天开心久久| 久久天天躁狠狠躁夜夜av浪潮| 最新偷拍一区二区三区| 中文字幕日韩精品亚洲一区| 日韩一区二区三区日韩精品| 日韩美av一区二区三区| 99热久久这里只有精品| 午夜免费福利小电影| 性男女做视频观看网站|