雅思閱讀材料：運動能改變DNA

科技生物類話題是雅思閱讀的�？荚掝}，今天小編為大家分享VOA上的一篇英語短文：Regular Exercise Can Change Our DNA，希望對大家的雅思備考有幫助！更多雅思閱讀材料，關(guān)注新通外語或撥打400-618-0272咨詢。

Swedish scientists say they have proven that physical exercise changes not only our health but also our genetic material.

Scientists have long known that some diets or exposure to chemicals can change the way genes send and receive chemical signals in the body. But nothing was known about the influence of physical exercise.

The Swedish study shows that exercise can have an effect on our deoxyribonucleic acid or DNA. DNA is often called the "building blocks of life." DNA is the material that carries genetic information in cells.

更多英語短文及實時新聞，關(guān)注新通外語，或拔打免費電話 400-618-0272 咨詢。

The study was a project of scientists at the Karolinska Institute in Stockholm. They asked 23 young, healthy women and men to exercise on stationary bicycles with only one leg, several times a week for three months. The scientists then compared DNA taken from muscle cells in both legs. They found DNA had changed greatly in the leg that got more exercise. Many of the genes that changed were linked to energy, insulin and muscle inflammation or pain.

Scientists say this shows that regular exercise affects our genes and can lead to better health. They say future studies would examine how long the changes last if someone stops exercising.

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