First broadcast: on BBC HDLatest broadcast: on BBC One Yorkshire
Can cannabis cause schizophrenia? Is it addictive? Or is it an undervalued medicine? Dr John Marsden discovers that science is finally beginning to find answers to these questions. Show more
First broadcast: on BBC Two ScotlandLatest broadcast: on BBC HD
Addiction expert John Marsden, who likes a drink, makes a professional and personal exploration of our relationship with alcohol, undergoing physical and neurological examinations. Show more
First broadcast: on BBC Two HDLatest broadcast: on BBC Two England
Professor John Marsden heads to Colorado, which voted to legalise the recreational use of cannabis in November 2012, to investigate the impact this could have on teenage drug use. Show more
