BioMark Diagnostics Inc.

**Causes of Lung Cancer**

Lung disease

Lung disease, such as chronic obstructive pulmonary disease (COPD), can contribute to lung cancer, and COPD is often even a side effect of smoking. COPD is a long-term disease related to chronic bronchitis and emphysema that is characterized by the destruction of lung cells, and it can be mitigated with lifestyle changes and medication. However, if you suffer from COPD, you are four to six times more likely to develop lung cancer, even if you are not a smoker. Diagnosing COPD early is key. Symptoms include shortness of breath, trouble breathing, and a persistent chronic cough.

**Causes of Lung Cancer**

Passive or second-hand smoking

Passive smoking or second-hand smoking is a term used to describe the inhalation of smoke from other people smoking around you. Even if you are unaware of how much smoke is in your surroundings at work, at home, or socially, it is an established risk factor for the development of lung cancer. Non-smokers who live with smokers have a 35% increase in the risk of developing lung cancer. This risk is especially relevant to children who have parents that smoke in the house. Sometimes we are unable to control passive smoking, but society is changing in the way we perceive passive smoking with the banning of smoking in some establishments and public areas.