哮喘,俗称“吼病”,包括支气管哮喘、喘息性支气管炎及阻塞性肺气肿,主要症状是咳嗽急、气瑞、胸闷和呼吸困难。严重者甚至整夜不能平卧。哮喘病是一种对人类健康危害大、发病率高的疾病。据流行病学调查:我国哮喘发病率为0.5%-5%:美国哮喘病发病率为9.9%,个别地区甚至高达32%。有关专家预测:人类进入21世纪后,哮喘病将成为中老年死亡和丧失劳动能力的主要原因之一。 Asthma, commonly known as “roar disease”, including bronchial asthma, asthmatic bronchitis and obstructive pulmonary emphysema, the main symptoms are cough, qirui, chest tightness and breathing difficulties. Serious even can not lie down all night. Asthma is a disease that has great harm to human health and high incidence. According to epidemiological survey: the incidence of asthma in China is 0.5% -5%: the incidence of asthma in the United States was 9.9%, even up to 32% in some areas. Experts predict that: After humans enter the 21st century, asthma will become one of the major causes of death and incapacity in middle-aged and elderly people.