The Human Body: Secrets of Your Life Revealed

BBC Four HD

9:00 PM to 10:00 PM

Wednesday 30 September

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Chris and Xand van Tulleken explore the processes keeping human beings alive, seeing how powerful reflexes of fear and disgust keep people safe from danger and revealing the mechanisms bodies call on to repair damage. Xand visits one of the most advanced laboratories in the world to test his body's ability to maintain its inner balance, while Chris learns how scientists in Stockholm are trying to help people with phobias by investigating the neural mechanisms involved in fear and ways to control it