만성 폐쇄성 폐질환
Chronic Respiratory Diseases (CRDs) are diseases of the lungs and airways. According to the World Health Organization (WHO) hundreds of millions of people suffer daily from CRDs. Common CRDs are: Asthma, Chronic obstructive pulmonary disease, Occupational lung disease, and Pulmonary hypertension. While CRDs are not curable, various treatments are available to help improve quality of life for individuals who have them. Most treatments involve dilating major airways to improve shortness of breath among other symptoms. The main risk factors for developing CRDs are: tobacco smoking, indoor and outdoor air pollution, allergens, and occupational risks.