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Tobacco use remains the greatest preventable cause of death globally, killing up to half of all its users. It is known for being the leading risk factor for most noncommunicable diseases, including heart disease and cancer.

There are over 7,000 chemicals present in tobacco smoke and among these, at least 250 are known to be harmful and at least 69 are known to be carcinogenic (World Health Organisation). Nicotine, one of these chemicals, is the addictive substance in tobacco and has hooked over 1.1 billion smokers globally among which 80 per cent live in low-and middle-income countries.