in Health Roughly a third of the world’s adult population… by Chirag Chauhan March 24, 2018, 7:56 am 137 Views Roughly a third of the world’s adult population smokes. cigaretteSmoking Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website By using this form you agree with the storage and handling of your data by this website. *