Smoking is the leading cause of preventable morbidity
and mortality worldwide. More than 1 billion deaths have
been projected to be attributed to tobacco smoking in the
21st century should the current smoking trend persists.1
Its detrimental effects on health are wide-ranging: from
the highly feared carcinogenic effects to damage to
the respiratory (such as chronic obstructive pulmonary
disease and smoking-related interstitial lung disease),
cardiovascular (for example, myocardial infarction) and
cerebrovascular (such as cerebrovascular accidents and
cognitive impairment) systems.
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