Back on the road, in northern Myanmar.

This was, without doubt, the most challenging trip I've ever done, but along the way, I met Naw San, a 19 year old heroin and meth addict. I followed his story, meeting his family and going back to visit his school. We didn't end up using it in the final programme, so here it is!

To hear the full programme, visit http://www.bbc.co.uk/programmes/p057w3f6