看太多的電視對孩子不好
Children as young as six are risking heart problems in later life because they are allowed to spend too much time watching TV or playing on computers, scientists warn.
科學家警告，6歲的孩子由於花太多時間看電視或玩電腦，將面臨今後患上心臟病的風險。
A study of 1,492 primary school pupils found that those who spent hours glued to the screen suffered narrowing of blood vessels in their eyes – an early warning sign of increased likelihood of heart disease and high blood pressure.
對1492名小學生進行的研究發現，那些長時間看電視的人眼睛血管收縮——這是可能患上心臟病和高血壓的早期預示。
But those who exercised for one hour a day were significantly healthier.
然而那些每天鍛鍊一小時的人明顯地比較健康。
The study was carried out by Dr Bamini Gopinath and a team of researchers at the University of Sydney.
這項研究是由悉尼大學Bamini Gopinath博士和一組研究人員進行的。
Parents answered a questionnaire detailing the amount of time their children spent watching TV, playing video games, reading and engaging in indoor and outdoor physical activity.
父母回答一份問卷說明他們孩子看電視，玩電子遊戲，看書和進行室內室外體育活動的具體時間。
Scientists then took digital photographs of the blood vessels at the back of each child’s eye and calculated their size.
然後，科學家們從每個小孩眼睛的後面照出他們的血管並計算他們的大小。
They also measured height, weight, body mass index and blood pressure.
他們還測量了身高，體重，身體質量指數和血壓。
They found on average, children spent 1.9 hours per day watching TV or playing on their computer and only 36 minutes doing physical activity.
他們發現，孩子每天平均花1.9小時看電視或玩電腦，36分鐘運動。
They had an average ‘retinal arteriolar’ narrowing of 2.3 microns.
他們的“視網膜小動脈”平均收縮2.3微米。
But those who regularly participated in outdoor physical activity had retinal blood vessels that were 2.2 microns wider.
但是那些經常參加戶外體育運動的人視網膜血管寬於2.2微米。
Dr Gopinath said that ‘replacing one hour a day of screen time with physical activity’ could be enough to stop the effects.
Gopinath博士說“每天用體育運動代替看電視的一個小時”就足以停止該影響。
(恆星英語學習網原創編譯,轉載請註明出處!)
