Burma's poppy fields are the world's second main source of heroin.<br /><br />Although there are few available statistics, residents and aid workers say increasing numbers of young people in the country are becoming drug addicts.<br /><br />The drug of choice is known as 'formula' -- a cocktail of cough medicine and opium that is taken as a drink --methamphetamine and straight heroin are also popular.<br /><br />Banyol Kong Janoi has more from the Kachin state.
