Passive Smoking Also Causes Lung Cancer: Health Experts

Passive smoking increases the risk of lung cancer in non-smokers as well, according to health experts. "Almost 25% of all lung cancer patients are non-smokers," said Dr Ashu Abhishek, the senior consultant at Fortis Hospital. Pollution, genetic exposure and occupational exposure are some ways, through which a person can be indirectly exposed to nicotine that increases the risk. However, the doctor said lung cancer in non-smokers was less aggressive than in smokers.