(单词翻译:单击)
As an editor at Health, I practice what we preach. I get 7 to 8 hours of sleep most nights, I make it to my favorite workout classes regularly, and I eat all of my servings of fruits and vegetables in every day (okay, I leave room for wine and dessert too).
作为《健康》杂志的编辑，我练习了我们宣传的内容。我几乎每晚都睡7至8个小时，定期上最爱的健身课，每天吃一定份额的水果和蔬菜（好吧，我也会喝酒、吃甜点）。
Yet every year, I manage to come down with several colds, bouts of strep throat, and stomach bugs. I even got shingles a few years ago. My burning question: Why is my immune system so weak?
但我每年还是会感冒、喉咙痛、肚子痛。几年前，我甚至得了带状疱疹。我有一个急需解决的问题：为什么我的免疫系统如此之弱？
The short answer: It's possible that some people have naturally stronger immune systems than others. "I have some perfectly healthy patients who get five to six upper respiratory infections-aka, the common cold, or more rarely, full-blown influenza-a year, and others with the same health profile who hardly ever get sick," says Holly Phillips, MD, an internal medicine physician in New York City and author of The Exhaustion Breakthrough. "It doesn't seem fair, and honestly it's not."
简短的回答：可能有些人的免疫系统本身就比他人更强。"我有一些健康状况良好的患者，他们每年会患5至6次上呼吸道感染--也就是普通感冒，或者更少见的，全面感染的流感，而其它有着相同健康状况的人却几乎从不生病，"纽约市的一位内科医生、The Exhaustion Breakthrough一书的作者霍莉·菲利普斯医学博士说道。"这看起来不大公平，但事实就是这样。"
On the flip side, some individuals are also thought to be especially resistant to certain bacterial and viral infections. "Immunologists refer to them as having 'super-immunity,' and their genetic makeup is the focus of an entire field of research," Dr. Phillips says.
另一方面，有些人对某些细菌和病毒感染的抵抗力特别强。"免疫学家称这些人拥有'超级免疫力，'而他们的基因构成则是整个研究领域的焦点，"菲利普斯医生说道。
Your immunity is determined by several factors. Genetics play a large role, says Paolo Boffetta, MD, professor of medicine, hematology, and medical oncology at Icahn School of Medicine at Mount Sinai Hospital in New York City. "Immunological genes are many and complex, and your immune response depends on their combined performance," Dr. Boffetta explains.
人体免疫力是由几个因素决定的。遗传学起着重要作用，纽约市西奈山医院伊坎医学院的医学、血液学和肿瘤学教授Paolo Boffetta医学博士说道。"免疫基因多种多样、非常复杂，而你的免疫反应取决于免疫基因的综合表现，"Boffetta医生解释道。
Experts also believe that you build up immunity while you are young, or possibly even before you are born. "There are factors during infancy and childhood, and perhaps also in utero, that contribute to the development of the immune system, but they are not fully understood," Dr. Boffetta says. What's more, environmental factors, such as pollutants and toxins, may also weaken your immune system over time.
专家还认为，人们年轻的时候（甚至可能在你出生之前），就已经建立了免疫系统。"在婴儿期和儿童期，或许当你还在子宫内的时候，有些因素也会促成免疫系统的发育，但目前尚未完全了解，"Boffetta医生说道。此外，环境因素，比如污染物和毒素，也可能随着时间的推移削弱人体的免疫力。
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