Many people mistake their increased breathlessness and coughing as a normal part of aging. In the early stages of the disease, you may not notice the symptoms. COPD can develop for years without noticeable shortness of breath. You begin to see the symptoms in the more developed stages of the disease and the symptoms are increased breathlessness, Frequent coughing (with and without sputum), wheezing and tightness in the chest.

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