Question

what is bronchitis? what causes this disease in smokers?​

Answer 1

Answer:

Chronic bronchitis results from repeated irritation and damage to the lung and airway tissues.

The most common cause is smoking, but not everyone with bronchitis is a smoker.

Other possible causes include: long term exposure to air pollution, dust, and fumes from the environment.

Answer 2

Explanation:

Bronchitis is usually caused by a virus. Less often, it's caused by a bacteria. In most cases, bronchitis is caused by the same viruses that cause the common cold or flu. The virus is contained in the millions of tiny droplets that come out of the nose and mouth when someone coughs or sneezes.