Most people who have COPD are at least 40 years old when their symptoms begin. Genetics. This includes alpha-1 antitrypsin deficiency, which is a genetic condition. Also, smokers who get COPD are more likely to get it if they have a family history of COPD.
Stage 1 COPD symptomsa persistent cough that produces a lot of mucus.a whistling sound known as wheezing when breathing.shortness of breath, especially with physical activity.a feeling of tightness in the chest.Mar 30, 2021