Your trachea, or windpipe, divides into bronchi, which develop into smaller tubes that run throughout your lungs. Asthma is one condition that can afflict these airways. Your airways may spasm and are constantly irritated, which results in wheezing and breathlessness. Infections, pollutants, and allergies can all exacerbate asthma symptoms.

• pulmonary illness that is chronically obstructive (COPD). You have difficulty breathing since you can't exhale as normally as you normally would.

• Prolonged bronchitis Long-term wet coughing is a symptom of this type of COPD.

• Emphysema. This type of COPD causes air to become stuck in your lungs due to lung deterioration. Its defining feature is difficulty blowing air out.

• Severe bronchitis Viruses are frequently to blame for this rapid infection of your airways.

CF (cystic fibrosis).