Around half of those between the ages of 12 and 35, or 1.1 billion people, are at risk due to "prolonged and excessive exposure to
Men are still more likely to kill themselves than women in all regions around the world and age groups, apart from 15-19 year-olds, study shows.
The World Health Organization released its annual report highlighting the greatest threats to public health this week, with climate change and pollution topping the list.
While the link between smoking and a range of cancers is well known, the World Health Organization warned Thursday there was too little awareness of tobacco's impact on the human