Hostile World

Image for Hostile WorldNot currently available on BBC iPlayer

Episode 4 of 4

Duration: 1 hour

In the final episode of Inside The Human Body, Michael Mosley reveals the ingenious ways in which your body defends itself against a hostile world - where sunlight shatters your DNA and every breath contains microbes that can kill.

We meet Cristian, a bull jumper whose muscles give him the strength to avoid a violent death, three-year-old Rowan whose internal army fights off the flu virus, and Johnny who gets injured almost every week to earn his living, relying upon his body's remarkable ability to heal

And when injuries are too severe to be repaired, we see how surgeons use medical expertise to exploit the body's natural powers of healing. Richard Edwards is filmed having his damaged hands cut off and replaced with someone else's - the first time something this radical has ever been attempted.

  • Michael Mosley on Inside The Human Body

    Michael Mosley on Inside The Human Body

    "It's a series I greatly enjoyed making, partly because of the people in it like Gerald, partly because I learnt so much about the workings of my own body."

    Read and comment on Michael's post on the BBC TV blog
  • Press Red to learn about the making of the series

    Press Red to learn about the making of the series

    Produced as an accompaniment to the linear "Inside the Human Body" programme, this is the fascinating story of how the production team behind the 4-part series brought together the latest scientific research and the most innovative computer technology to create never-before-seen worlds for this BBC One landmark series.

    In Hostile World, we discover how the recurring hero of the series, the phagocyte, was transformed from medical images into a realistic 3D character – culminating in a giant battle as it defends your body from invaders. Also, how the music for series brought drama and spectacle to events taking place on a microscopic level.

    Press Red after each programme
    Thu 26th May, 21:55 - 04:00

    Watch the red button clip for episode 4
  • Extremely active at 99 years old

    Extremely active at 99 years old

    Esther Tuttle is 99 years old and lives in the heart of New York City. She lives a surprisingly active lifestyle which includes an hour of yoga and other floor exercises every morning before a half-hour walk around the street or on the top of her Manhattan apartment block.

  • Michael meets the Cardiff Devils ice hockey team

    Michael meets the Cardiff Devils ice hockey team

    Michael was filmed attempting to test his reflexes in goal against professional ice hockey team: the Cardiff Devils at Cardiff Arena.

    The Cardiff Devils
  • Bull Jumping champion

    Bull Jumping champion

    Christian Serra whose competition nickname is Shin Chan is a champion Bull leaper. He was filmed performing his talent at a bullring in Chelva, North East of Valencia, Spain.

  • Boxer Johnny Greaves

    Boxer Johnny Greaves

    Johnny Greaves is a professional light welterweight boxer who, at the time of filming had lost 51 out of 53 fights. His body’s defence system enables him to heal quickly so he can continue to collect his wage for his next fight. He was filmed fighting at York Hall, Bethnal Green, London and Citywest Hotel, Saggart, Dublin, and filmed training at The Peacock Gym, North London.

    Peacock Gym
  • Running 135 miles across Death Valley

    Running 135 miles across Death Valley

    Jamie Donaldson is an ultra marathon runner who in 2010 broke the women’s fastest Badwater course record running the 135 miles across Death Valley in 26 hours and 16 minutes. Jamie had to withstand temperatures of over 55 degrees Celsius (135 degrees Fahrenheit).

    Badwater Ultramarathon
  • Fighting the flu at 3 years old

    Fighting the flu at 3 years old

    3 year old Rowan O’Brian was suffering from a severe dose of ‘flu yet his body managed to fight off the infection.

  • Double Hand-Transplant

    Double Hand-Transplant

    Richard Edwards was unfortunately involved in a freak accident in which 30 per cent of his body was severely burnt. Although most of his body recovered, his hands couldn’t heal therefore he volunteered to have a double hand transplant, the first of its kind, in which both his hands were removed and replaced with those from a donor. We follow Richard’s journey before, during and after surgery. The operation took place at The Jewish Hospital, Hand Care centre, Louisville, Kentucky, USA.

    Jewish Hospital & St. Mary's HealthCare


Michael Mosley
Michael Mosley
Rob Liddell
Rob Liddell
Executive Producer
Andrew Cohen
Executive Producer
Andrew Cohen
Rob Liddell
Rob Liddell
Annabel Gillings


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