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 werent 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 years 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 doesnt cause any particular disease, but research suggests that it hastens the time when whatever your genes9 have in store will occur -- so if youre vulnerable to heart disease, youre more likely to get it younger if your telomeres are shorter, said Epel, director of the University of California, San Franciscosplay 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 Epels efforts to make telomere research relevant to the general public, though several warned that it risked oversimplifying the science.I think its 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 its based on associations.
点击收听单词发音
1 molecular adj.分子的;克分子的 参考例句: The research will provide direct insight into molecular mechanisms.这项研究将使人可以直接地知道分子的机理。 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。