如何控制衰老
文章来源:未知 文章作者:enread 发布时间:2017-01-08 08:12 字体: [ ]  进入论坛
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Molecular1 biologist Elizabeth Blackburn shared a Nobel Prize for her research on telomeres -- structures at the tips of chromosomes2 that play a key role in cellular3 aging. But she was frustrated4 that important health implications of her work weren't reaching beyond academia.
 
So along with psychologist Elissa Epel, she has published her findings in a new book aimed at a general audience -- laying out a scientific case that may give readers motivation to keep their new year's resolutions to not smoke, eat well, sleep enough, exercise regularly, and cut down on stress.
 
The main message of "The Telomere Effect," being published Tuesday, is that you have more control over your own aging than you may imagine. You can actually lengthen5 your telomeres -- and perhaps your life -- by following sound health advice, the authors argue, based on a review of thousands of studies.
 
"Telomeres listen to you, they listen to your behaviors, they listen to your state of mind," said Blackburn, president of the Salk Institute for Biological Studies in La Jolla, Calif.
 
Telomeres sit at the end of strands6 of DNA7, like the protective caps on shoelaces. Stress from a rough lifestyle will shorten those caps, making it more likely that cells will stop dividing and essentially8 die.
 
Too many of these senescent cells accelerates human aging, the pair say. This doesn't cause any particular disease, but research suggests that it hastens the time when whatever your genes9 have in store will occur -- so if you're vulnerable to heart disease, you're more likely to get it younger if your telomeres are shorter, said Epel, director of the University of California, San Francisco's Aging, Metabolism10 and Emotions Center.
 
"We can provide a new level of specificity and tell people more precisely11 with clues emerging from telomere science, what exactly about exercise is related to long telomeres, what exact foods are related to long telomeres, what aspects of sleep are more related to long telomeres," Epel added.
 
Other researchers in the field praised Blackburn and Epel's efforts to make telomere research relevant to the general public, though several warned that it risked oversimplifying the science.
 
"I think it's a very difficult thing to prove conclusively12" that lifestyle can affect telomere length and therefore lifespan, said Harvard geneticist and anti-aging researcher David Sinclair. "To get cause-effect in humans is impossible, so it's based on associations."


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1 molecular mE9xh     
adj.分子的;克分子的
参考例句:
  • The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
  • For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时,分子的碰撞就停止了。
2 chromosomes 11783d79c0016b60332bbf1856b3f77d     
n.染色体( chromosome的名词复数 )
参考例句:
  • Chromosomes also determine the sex of animals. 染色体也决定动物的性别。 来自《简明英汉词典》
  • Each of four chromosomes divide longitudinally. 四种染色体的每一种都沿着纵向分裂。 来自《现代汉英综合大词典》
3 cellular aU1yo     
adj.移动的;细胞的,由细胞组成的
参考例句:
  • She has a cellular telephone in her car.她的汽车里有一部无线通讯电话机。
  • Many people use cellular materials as sensitive elements in hygrometers.很多人用蜂窝状的材料作为测量温度的传感元件。
4 frustrated ksWz5t     
adj.挫败的,失意的,泄气的v.使不成功( frustrate的过去式和过去分词 );挫败;使受挫折;令人沮丧
参考例句:
  • It's very easy to get frustrated in this job. 这个工作很容易令人懊恼。
  • The bad weather frustrated all our hopes of going out. 恶劣的天气破坏了我们出行的愿望。 来自《简明英汉词典》
5 lengthen n34y1     
vt.使伸长,延长
参考例句:
  • He asked the tailor to lengthen his coat.他请裁缝把他的外衣放长些。
  • The teacher told her to lengthen her paper out.老师让她把论文加长。
6 strands d184598ceee8e1af7dbf43b53087d58b     
n.(线、绳、金属线、毛发等的)股( strand的名词复数 );缕;海洋、湖或河的)岸;(观点、计划、故事等的)部份v.使滞留,使搁浅( strand的第三人称单数 )
参考例句:
  • Twist a length of rope from strands of hemp. 用几股麻搓成了一段绳子。 来自《简明英汉词典》
  • She laced strands into a braid. 她把几股线编织成一根穗带。 来自《简明英汉词典》
7 DNA 4u3z1l     
(缩)deoxyribonucleic acid 脱氧核糖核酸
参考例句:
  • DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
  • Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。
8 essentially nntxw     
adv.本质上,实质上,基本上
参考例句:
  • Really great men are essentially modest.真正的伟人大都很谦虚。
  • She is an essentially selfish person.她本质上是个自私自利的人。
9 genes 01914f8eac35d7e14afa065217edd8c0     
n.基因( gene的名词复数 )
参考例句:
  • You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因,所以能够活得很长。 来自《简明英汉词典》
  • Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
10 metabolism 171zC     
n.新陈代谢
参考例句:
  • After years of dieting,Carol's metabolism was completely out of whack.经过数年的节食,卡罗尔的新陈代谢完全紊乱了。
  • All living matter undergoes a process of metabolism.生物都有新陈代谢。
11 precisely zlWzUb     
adv.恰好,正好,精确地,细致地
参考例句:
  • It's precisely that sort of slick sales-talk that I mistrust.我不相信的正是那种油腔滑调的推销宣传。
  • The man adjusted very precisely.那个人调得很准。
12 conclusively NvVzwY     
adv.令人信服地,确凿地
参考例句:
  • All this proves conclusively that she couldn't have known the truth. 这一切无可置疑地证明她不可能知道真相。 来自《简明英汉词典》
  • From the facts,he was able to determine conclusively that the death was not a suicide. 根据这些事实他断定这起死亡事件并非自杀。 来自《简明英汉词典》
TAG标签: health mind aging
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