英語聽力文摘451 長期用筷子有損關(guān)節(jié)

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筷子與關(guān)節(jié)炎

If you’ve ever tried eating with chopsticks, you know they can be a pain to learn how to use. According to a Boston University study, ever since their invention nearly five-thousand years ago, chopsticks have been a source of literal pain by exacerbating the onset of osteoarthritis in old age.

Osteoarthritis is a disease of the joints caused by repeated use of a particular joint. Normally the ends of bones are covered with a shock-absorber-like pad of springycartilage that helps bone ends move more easily.

Over time, repeated use of the joint can wear the cartilage down like the eraser on a frequently used pencil. When cartilage wears down, bone end rubs against bone end on a joint, causing stiffness and often extreme pain. Over time, an unprotected joint can become deformed and parts of the rubbing bones can wear away and chip off, causing even more discomfort.

What does this have to do with chopsticks? Any repetitive motion involving the fingers can amplify the effects of naturally occurring cartilagedecay. If you’ve ever used chopsticks you know that pinching them together puts stress on the thumb and forefinger.

Imagine making this motion at every meal every day of your life and you begin to understand how chopsticks can harm your joints. According to the Boston University study, the thumb joint is the primary victim of chopstick use.

If you’re an adventurousdiner and occasionally like to eat Asian food using authentic dining implements, don’t worry. Only regular use over many years is cause for alarm.

如果你有用筷子吃過飯，你就知道學(xué)習(xí)使用它就是一種痛苦。波士頓大學(xué)的一項(xiàng)研究表明，因?yàn)樗麄?指中國人)發(fā)明筷子是在近5000年以前，所以(使用)筷子是造成(一個(gè)人)在老年時(shí)期產(chǎn)生骨關(guān)節(jié)炎的原因之一。

骨關(guān)節(jié)炎是一種由重復(fù)使用某一關(guān)節(jié)而造成的關(guān)節(jié)疾病。通常情況下，骨頭的末端是被一層類似可以防震的、有彈性的軟骨覆蓋的墊層。

隨著時(shí)間的推移，對關(guān)節(jié)的重復(fù)使用會(huì)磨損該軟骨，就像在經(jīng)常使用的鉛筆上面的橡皮擦一樣。當(dāng)軟骨被磨損了，骨頭末端就會(huì)與關(guān)節(jié)末端產(chǎn)生摩擦，造成(骨頭)堅(jiān)硬，而且時(shí)常極度疼痛。隨著時(shí)間的推移，這個(gè)不受保護(hù)的關(guān)節(jié)就會(huì)變得畸形，與之摩擦的骨頭部分會(huì)因?yàn)槟Σ炼p，造成更多的不適。

這與筷子又有什么關(guān)系呢?包括手指在內(nèi)的任何一個(gè)重復(fù)性的動(dòng)作都會(huì)比自然發(fā)生的軟骨衰退效果嚴(yán)重。如果你有用過筷子你就會(huì)知道將它們夾在一起會(huì)將壓力施在大拇指和食指上。

試想如果你每天每餐都這樣，你就會(huì)明白筷子是如何傷害你的關(guān)節(jié)了。根據(jù)波士頓大學(xué)的研究，使用筷子的主要受害部位就是大拇指。

如果你是個(gè)愛冒險(xiǎn)的食客，不時(shí)的喜歡吃要使用點(diǎn)用餐工具的亞洲食物，不要擔(dān)心。因?yàn)橹挥谐^數(shù)年的定期使用才會(huì)造成危險(xiǎn)。