Scientists have pinpointed a genetic link that makes people more prone to get hooked on to tobacco, smoke more cigarettes and develop deadly lung cancer.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/genetic-link-tobacco-addiction
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tobacco
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/smoking
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tobacco-related-cancer
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/europe