Clinical psychologist Dr Tanya Byron asks if we are a society addicted to the idea of addiction. Hearing controversial views from those who believe we are in danger of absolving weak and selfish people from taking responsibility for their own choices, she asks how far we should we go with the concept of addiction. Should we believe someone who says they are a sex addict? Or the teenager who claims to be addicted to video games? Tanya examines some unconventional treatments.

Dr Tanya Byron explores what some consider the fine line between religious devotion and psychiatric disorder. She sees what happens when rational scientists try to analyse religious phenomena like speaking in tongues and hearing voices. And she considers the beliefs of faith healers who claim miracles happen, and those who believe they can cast out the malevolent spirits of the dead from within the living. Reports suggest fewer people in Britain today follow a religion than ever before. Yet most of us still cling to the idea of life after death, spirits and the supernatural. Why do we judge some as true believers and others as religious nuts? And what happens when the worlds of hard scientific fact and pure faith collide?