Smoking
Smoking is the practice of burning tobacco and inhaling the smoke (consisting of particle and gaseous phases). The practice was believed to begin as early as 5000–3000 BC.
Tobacco was introduced to Eurasia in the late 17th century where it followed common trade routes. The practice encountered criticism from its first import into the Western world onwards, but embedded itself in certain strata of a number of societies before becoming widespread upon the introduction of automated cigarette-rolling apparatus
Smoking is the main cause of lung cancer. Note: Dr. Bittoni et al. found that prospective data from NHANES III showed that among adults with a history of past or current smoking, ibuprofen intake was associated with a substantial (48 percent) reduction in the risk of dying from lung cancer. Effects of aspirin and acetaminophen were not statistically significant.