久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

 
 
 

Looking for answers to asthma

2012-05-17 17:32

 

Get Flash Player

Download

Looking for answers to asthma

SHIRLEY GRIFFITH: This is SCIENCE IN THE NEWS in VOA Special English. I'm Shirley Griffith.

BOB DOUGHTY: And I'm Bob Doughty. Spring has returned to the United States. The sky is blue, the grass is green and many plants are flowering. Spring can be a beautiful time of year. But it is especially troublesome for people with asthma. High pollen levels can keep asthma sufferers from enjoying spring flowers and the weather.

(MUSIC)

SHIRLEY GRIFFITH: May is Asthma Awareness Month in the United States. And May 1st is World Asthma Day. The Global Initiative for Asthma, or GINA, organizes the event every year. GINA is a joint effort of the World Health Organization and the National Heart, Lung and Blood Institute of America's National Institutes of Health.

GINA held its first World Asthma Day 14 years ago, in 1998. This year, the theme for World Asthma Day is "You Can Control Your Asthma." GINA first launched this education campaign as part of the event in 2007. The group notes that while asthma cannot be cured, it can be successfully controlled.

BOB DOUGHTY: Asthma is a disorder that causes breathing passages to narrow. This reduces the amount of air entering and leaving the lungs, causing difficulty in breathing.

The World Health Organization says asthma affects about 235 million people worldwide. The WHO says asthma is the most common chronic disease among children. And it says the disease affects people in all countries around the world and at every development level. However, the WHO says 80 percent of asthma deaths happen in low and lower middle income countries.

Asthma affects not only millions of individuals, but families and economies alike. The yearly economic cost of the disorder is said to be close to 20 billion dollars. And the World Health Organization warns that asthma rates are increasing worldwide by an average of 50 percent every ten years.

SHIRLEY GRIFFITH: Asthma happens when tissue that lines the airways to the lungs begins to expand or swell. This swelling makes the airways smaller. The muscles in the airways tighten. Cells in the airways begin to produce a lot of mucus. This thick, sticky substance can cause the airways to close even more. This makes it difficult for air to flow in and out of the lungs.

This series of events is called an asthma attack. As asthma sufferers struggle to get air into their lungs, they may begin to cough. They also may experience wheezing -- breathing hard with a breathy, whistling sound.

Some asthma sufferers have tightness or pain in the chest. They say it feels as if someone is sitting on them. When asthma is most severe, the person may have extreme difficulty breathing. The disorder can severely limit a person's activity, and even lead to death.

BOB DOUGHTY: Doctors do not know what causes asthma. Medical researchers believe a combination of environmental and genetic conditions may be responsible. Forty percent of children who have parents with asthma will also develop this disorder. Seventy percent of people with asthma also have allergies. Allergies are unusual reactions of the body's natural defenses to normally harmless substances or conditions.

Doctors have identified many of the things that may trigger, or start, an asthma attack. Triggers are things that cause an asthma sufferer's airways to swell, or increase in size.

Different asthma patients have different triggers. Allergens are one of the most common triggers. These impurities in the air cause allergic reactions. Some of the more common allergens include animal hair, dust, mold and pollen.

SHIRLEY GRIFFITH: Pollen is a fine dust that comes from grass, trees and flowers. Mold is a kind of fungus. It can grow on the walls or floors of homes. It is often in wet or damp areas like bathrooms, kitchens and basements.

The Environmental Protection Agency estimates that 21 percent of asthma cases in the United States have links to mold and dampness in homes.

Air pollution can also trigger asthma. Cigarette smoke is a major problem for asthma sufferers. So is air pollution from motor vehicles. Chemical sprays like air fresheners, hair spray, cleaning products and even strong beauty aids can trigger an asthma attack.

Some people cough, wheeze or feel out of breath during or after exercise. They are said to suffer from exercise-induced asthma. During the winter, breathing in cold air can trigger an asthma attack. So can colds and other infections of the respiratory system.

(MUSIC)

BOB DOUGHTY: The Centers for Disease Control and Prevention says more than 25 million people in the United States have asthma. It says the disorder affects more than seven million American children. Among adults, more women have the disease than men. However, it is more common among boys than girls.

The National Institute of Allergy and Infectious Diseases says the disease affects African-Americans more than whites. African-American children die from asthma at five times the rate of white children.

SHIRLEY GRIFFITH: VOA Special English broadcaster June Simms has a 15-year old son with asthma. Arick Simms first showed signs of the disease when he was about two years old.

Arick's doctor gave him a medicine called albuterol. Albuterol helps to increase air flow and reduce tension in the airways. The doctor also gave him a machine called a nebulizer. It connects to a mask that fits over the nose and mouth.

The nebulizer turns the liquid albuterol into a fog-like mist. Arick inhaled the mist through the mask. The treatments made it easier for him to breathe. During times when Arick's asthma was really severe, he was also given steroid medicines to help reduce swelling in his airways.

BOB DOUGHTY: As Arick grew older, the doctor replaced his nebulizer with an inhaler. The small medical devices helped him to breathe easier. He also began seeing a doctor who specializes in treating patients with asthma.

The doctor discovered that Arick also suffers from allergies. He now takes medicines every day to help keep his asthma and allergies under control.

(MUSIC)

SHIRLEY GRIFFITH: The Global Initiative for Asthma was formed in 1993. GINA works with health care experts and public health officials around the world to improve asthma care and to reduce the number of asthma cases.

In 2004, GINA released a report called "The Global Burden of Asthma." The group said asthma is a growing problem in both industrial and developing countries. It estimated that there may be an additional 100 million people with asthma by the year 2025.

BOB DOUGHTY: GINA says there are many things that people can do to control their asthma.

People should know the causes of their asthma symptoms and try to avoid these triggers. For example, seek to avoid animal hair, dust, pollen and cigarette smoke. Some people may need to take medicines before they work hard or exercise.

Asthma patients should work with their doctors to control the disorder. They should go to the doctor for medical examinations even if they are feeling fine. They should make sure they understand how and when to take their medicines. They also should act quickly to treat asthma attacks and know when to seek medical help.

The Global Initiative for Asthma urges governments and health officials to do more to improve asthma control. GINA hopes to reduce asthma hospitalization by 50 percent by the year 2015.

(MUSIC)

SHIRLEY GRIFFITH: There is also new research that offers hope to asthma sufferers. Researchers say they have developed a vaccine that protects against one of the most common allergens, dust. They say the vaccine tricks the body into not overreacting to dust. It does this by producing dust mite proteins on its own. Results of the study are to be published in the journal Human Gene Therapy.

The researchers in France used asthmatic mice to test the vaccine. They are now seeking approval to do future studies involving human patients.

(MUSIC)

BOB DOUGHTY: This SCIENCE IN THE NEWS was written by June Simms, who was also our producer. I'm Bob Doughty.

SHIRLEY GRIFFITH: And I'm Shirley Griffith. Visit us at voaspecialenglish.com, where you can find transcripts and MP3s of our reports. Join us again next week for SCIENCE IN THE NEWS in VOA Special English.

mucus: 粘液

albuterol: 舒喘靈

Related stories:

What people with asthma can do to keep it under control

Allergens in ingredients to be listed on food labels

Why getting dirty can be healthy for children

Trouble is in the air for allergy sufferers

(來源:VOA 編輯:旭燕)

 
中國日報網(wǎng)英語點津版權說明:凡注明來源為“中國日報網(wǎng)英語點津:XXX(署名)”的原創(chuàng)作品,除與中國日報網(wǎng)簽署英語點津內(nèi)容授權協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883561聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關;本網(wǎng)所發(fā)布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請?zhí)峁┌鏅嘧C明,以便盡快刪除。

中國日報網(wǎng)雙語新聞

掃描左側二維碼

添加Chinadaily_Mobile
你想看的我們這兒都有!

中國日報雙語手機報

點擊左側圖標查看訂閱方式

中國首份雙語手機報
學英語看資訊一個都不能少!

關注和訂閱

本文相關閱讀
人氣排行
搜熱詞
 
 
精華欄目
 

閱讀

詞匯

視聽

翻譯

口語

合作

 

關于我們 | 聯(lián)系方式 | 招聘信息

Copyright by chinadaily.com.cn. All rights reserved. None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited. 版權聲明:本網(wǎng)站所刊登的中國日報網(wǎng)英語點津內(nèi)容,版權屬中國日報網(wǎng)所有,未經(jīng)協(xié)議授權,禁止下載使用。 歡迎愿意與本網(wǎng)站合作的單位或個人與我們聯(lián)系。

電話:8610-84883645

傳真:8610-84883500

Email: languagetips@chinadaily.com.cn

久久久无码人妻精品无码_6080YYY午夜理论片中无码_性无码专区_无码人妻品一区二区三区精99

    黄色大片中文字幕| www.日本少妇| 日本精品久久久久久久久久| 精品视频无码一区二区三区| ijzzijzzij亚洲大全| 青青在线视频观看| 国产精品无码电影在线观看| 中文字幕有码av| 青青在线免费观看| 国产探花在线观看视频| 男女av免费观看| 黄色一级片黄色| 国产又粗又长又爽又黄的视频| 日本天堂免费a| 久久久精品视频国产| www.se五月| 91aaa精品| 日韩视频第二页| 97久久国产亚洲精品超碰热| www.亚洲天堂网| 免费视频爱爱太爽了| 中文字幕亚洲乱码| 久久99中文字幕| 吴梦梦av在线| 久久久久xxxx| 免费黄色一级网站| 逼特逼视频在线| www.在线观看av| 在线观看岛国av| aa在线免费观看| 国产一区二区三区播放| 欧美婷婷精品激情| 五月丁香综合缴情六月小说| 亚洲精品mv在线观看| 亚洲77777| 不要播放器的av网站| 成人黄色av片| 免费无码毛片一区二三区| 亚洲国产一二三精品无码| 搡的我好爽在线观看免费视频| 成人精品视频一区二区| 国产福利精品一区二区三区| 九九九在线观看视频| 欧洲美女和动交zoz0z| 成人手机视频在线| 亚洲一二三不卡| 特黄视频免费观看| 手机av在线免费| 日韩欧美国产片| 一区二区免费av| 一区二区三区国产好的精华液| 999这里有精品| 黄色一级片免费播放| 手机精品视频在线| 亚洲免费av网| 欧美 国产 精品| 国产爆乳无码一区二区麻豆| 日b视频免费观看| 久艹视频在线免费观看| 精品视频免费在线播放| 女人和拘做爰正片视频| 久久久久久久激情| 国产精品久久久毛片| 高清一区二区视频| 婷婷中文字幕在线观看| 中国一级黄色录像| 国产成人永久免费视频| 奇米精品一区二区三区| 久久久久免费精品| 日韩在线不卡一区| 国产奶头好大揉着好爽视频| 特级西西444| 免费看一级大黄情大片| 激情内射人妻1区2区3区| 久久综合久久色| 欧美成人免费高清视频| 国产精品一区二区小说| 国产农村妇女精品久久| 菠萝蜜视频在线观看入口| 日韩中文在线字幕| 美女日批免费视频| 亚洲三级视频网站| 国产xxxxhd| av 日韩 人妻 黑人 综合 无码| 野外做受又硬又粗又大视频√| 少妇高潮喷水久久久久久久久久| 日本爱爱免费视频| 伊人国产精品视频| 免费在线观看视频a| 黄色一级免费大片| 佐佐木明希av| 香港三级韩国三级日本三级| 成年人三级黄色片| 国产在线视频综合| 久久久久久三级| 中国黄色录像片| 久久久噜噜噜www成人网| 在线免费观看av网| 欧美深夜福利视频| 欧美激情第一区| 久久综合久久网| 亚洲国产成人va在线观看麻豆| 国产高清www| 一本一道久久a久久综合蜜桃| 欧美高清中文字幕| 午夜精品免费看| 国产免费黄视频| 天天做天天爱天天高潮| 国语对白做受xxxxx在线中国| 天天综合中文字幕| 日本女优爱爱视频| 99久久久精品视频| 亚洲黄色av片| 国产美女三级视频| 欧美极品少妇无套实战| 婷婷免费在线观看| 成 年 人 黄 色 大 片大 全| 91大神免费观看| 久草在在线视频| 丰满少妇久久久| 91视频成人免费| 亚洲午夜激情影院| 激情综合网俺也去| 国内性生活视频| 操bbb操bbb| 天天干天天av| 亚洲精品怡红院| 成人综合视频在线| 免费在线看黄色片| 日本一二三区视频在线| 91看片破解版| 97xxxxx| 国产免费xxx| 亚洲精品国产久| av在线无限看| 成人免费观看毛片| 欧美日韩精品在线一区二区| 黄色一级大片免费| 国产av第一区| 久久艹这里只有精品| 亚洲最大天堂网| 99热手机在线| av免费网站观看| 无码人妻丰满熟妇区五十路百度| 免费无码毛片一区二三区| 真人做人试看60分钟免费| 亚洲欧美一区二区三区不卡| 国内自拍第二页| 在线看免费毛片| 国产一级免费大片| 婷婷中文字幕在线观看| 在线视频一二区| www.色欧美| 天堂在线中文在线| 国产在线观看中文字幕| 不卡中文字幕在线| 精品少妇人妻av一区二区| 中文字幕综合在线观看| 樱空桃在线播放| 亚洲高潮无码久久| 日韩一级片一区二区| 91.com在线| 黄色免费视频大全| 黄色片久久久久| 男人女人黄一级| www.精品在线| 精品久久久99| 大桥未久一区二区三区| 国产精品一二三在线观看| 黄色特一级视频| jizzjizz国产精品喷水| 精品www久久久久奶水| 一级黄色香蕉视频| 国内自拍第二页| 久久久天堂国产精品| 日韩国产一级片| 国产男女激情视频| 国产精品嫩草影院8vv8| 先锋影音男人资源| 777av视频| 国产天堂在线播放| 天天做天天干天天操| 国产一级黄色录像片| www.国产在线播放| 久久久久久www| 国产免费成人在线| www.夜夜爽| 日韩精品久久一区二区| 日本久久久精品视频| 中国丰满人妻videoshd| 精品免费国产一区二区| 婷婷激情5月天| 黄色成人在线免费观看| 岳毛多又紧做起爽| 热久久久久久久久| 国产二区视频在线| 精品99在线视频| 日本一区二区免费高清视频| av高清在线免费观看| 自拍偷拍一区二区三区四区|