YOUR GENES change.In May, a study was published in the Proceedings of the National Academy of Sciences showing that changing your lifestyle changes your genes.

　　YOUR TELOMERES (染色体端粒) get longer.Telomeres are the ends of our chromosomes (染色体) that control how long we live.As telomeres become shorter, then cells age more quickly, thus shortening your life.

　　Besides, one of the most interesting findings in the study was that the mothers' awareness of stress was more important than what was really occurring in their lives.The researchers gave the women a questionnaire and asked them to rate on a three－point scale how stressed they felt each day, and how out of control their lives felt to them.The women who were aware that they were under heavy stress had significantly shortened and damaged telomeres compared with those who felt more relaxed.On the contrary, some of the women who felt relaxed despite raising a disabled child had more normal－appearing telomeres.

　　In other words, if you feel stressed, you are stressed; if you feel fine, you are fine.

　　【语篇解读】　本文主要讲述了健康的饮食，积极锻炼以及其他因素给我们身体各方面带来的影响。

　　1．Which of the following are good for lengthening one's life, according to the passage?

　　①eat healthy food　②drink plenty of water　③take exercise　④get up early　⑤go to sleep early　⑥release one's stress

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