原材料引用（Materials ）
This is the VOA Special English Health Report.
Cardiopulmonary resuscitation, or CPR, can save the life of someone whose heart has stopped. The condition is called cardiac arrest. The heart stops pumping blood. The person stops breathing. Without lifesaving measures, the brain starts to die within four to six minutes.
CPR combines breathing into the victim's mouth and repeated presses on the chest. CPR keeps blood and oxygen flowing to the heart and brain.
However, a new Japanese study questions the usefulness of mouth-to-mouth breathing.
The study was published in the British medical magazine, The Lancet. Doctors in Tokyo led the research. It examined more than four thousand people who had suffered cardiac arrest. In all the cases, witnesses saw the event happen.
More than one thousand of the victims received some kind of medical assistance from witnesses. Seven hundred and twelve received CPR. Four hundred and thirty-nine received chest presses only. No mouth-to-mouth rescue breaths were given to them. The researchers say any kind of CPR improved chances of the patient's survival. But, they said those people treated with only chest presses suffered less brain damage.
Twenty-two percent survived with good brain ability. Only ten percent of the victims treated with traditional CPR survived with good brain ability.
The American Heart Association changed its guidelines for CPR chest presses in two thousand five. It said people should increase the number of chest presses from fifteen to thirty for every two breaths given.
Gordon Ewy is a heart doctor at the University of Arizona College of Medicine in Tucson. He wrote a report that appeared with the study. Doctor Ewy thinks the CPR guidelines should be changed again. He said the heart association should remove rescue breaths from the guidelines.
He argues that more witnesses to cardiac arrests would provide treatment if rescue breaths are not a part of CPR. He says this would save lives. Studies show that many people do not want to perform mouth-to-mouth breathing on a stranger for fear of getting a disease.
Cardiac arrest kills more than three hundred thousand people in the United States every year. The American Heart Association says about ninety-five percent of victims die before they get to a medical center.
And that's the VOA Special English Health Report, written by Caty Weaver. I’m Bob Doughty.
信息和事實（Facts ）
Cardiopulmonary Resuscitation 心肺復蘇術
Cardiac arrest 心搏停止
感受與評價（Comments）
因今天凌晨2點才得知有晨讀活動，立刻報名。本來6:30開始，6:20鬧鐘響我看了下沒得到回復，等到6:30還沒消息以為今天要錯過了就接著睡。在6:52得到S回復說可以進群然后7點正式開始，而我在6:57被寶寶吵醒，哈哈，寶寶是我的福星呢。第一天的直播課竟然也沒有錯過，聽到了S的聲音。感覺他的英語要比中文好聽，哈哈。
然后開始準備完成落下的預習任務，一是錄音，這個不難，但真的跟原版語音語調相差很遠，而且我的通常要快十幾秒鐘，與S的要求不符，只能硬著頭皮接著錄，就這樣錄了快十遍才差不多達到要求。
統(tǒng)計累計的練習小時數(shù)（Hours）
1小時
