A resident of "The Light of The World" rehabilitation centre for heroin addicts shows traces on his neck from a traditional healing method for a fever in Myitkyina, the capital of Myanmar's Kachin state July 6, 2013. The centre, run by The Kachin Baptist Convention offers a 3-month "course" of prayer, Bible study and devotional singing for drug users. There is no methadone at the centre. Myanmar is the world's largest producer of opium after Afghanistan, and use of its derivative heroin is widespread. The centre's popularity is a testament both to the severity of Myanmar's drug problem and the lack of options for users in a poor country where modern treatment programmes are rare. [Photo/Agencies]

Residents pass the time at their 4m by 2m (13ft by 6ft) cell, where they are moved as punishment for breaking rules, at "The Light of The World" rehabilitation centre for heroin addicts in Myitkyina, the capital of Myanmar's Kachin state July 6, 2013.