Cigarette smoking causes emphysema/asthma.

Explanation

### Step-by-Step Solution:

1. **Understanding Asthma**:
- Asthma is a respiratory disorder characterized by difficulty in breathing due to inflammation of the bronchi and bronchioles.
- Symptoms include wheezing, coughing, and shortness of breath.

2. **Understanding Emphysema**:
- Emphysema is a chronic lung condition where the walls of the alveoli (the small air sacs in the lungs) are damaged.
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