Chronic pulmonary conditions limit the airflow by

Chronic pulmonary conditions limit the airflow by increasing production of mucus caused by inflammation, cause damage to the air sacs and passages, and lead to the development of fibrotic tissue replacing healthy tissue. Symptoms include cough, mucus and phlegm with cough, shortness of breath minimal efforts, chest tightness, and wheezing. Late course of the disease can confine a patient to the continuous use of supplied oxygen for life.
Adults Stem Cells Activity $CIHN