Alan tells how an evening of drinking alcohol at 14 led to events that changed his life.
Anna tells how an evening of drinking alcohol at 17 led to events that changed her life.
Three experts offer arguments against the legalisation of cannabis.
A medicinal and recreational marijuana user talk about their experiences of the drug.
Kevin describes how heroin took over his life and how he refused to get help.
Kevin talks about how his heroin addiction began with recreational drug use.
Kevin and his girlfriend describe how heroin came between them.