Turned On by Danger

Season 34Episode 6Season 34Episode 8

E7 Turned On by Danger

17 Apr, 1997 · 1h

Season 34Episode 6Season 34Episode 8

E7 Turned On by Danger

17 Apr, 1997 · 1h

Horizon reports on a radical new theory by Professor Polly Matzinger about the human body's immune system.

Horizon reports on a radical new theory by Professor Polly Matzinger about the human body's immune system.

Michael Mosley

†

Self - Presenter / Self / Narrator

67 yrs

Paul Vaughan

†

Narrator (voice)

89 yrs

Alice Roberts

Self - Presenter

53 yrs

Hannah Fry

Self - Presenter / Self

42 yrs

Richard Feynman

†

Self / Himself

69 yrs

Professor Brian Cox

Presenter / Personter

58 yrs

Giles Yeo

Presenter

53 yrs

Xand van Tulleken

Presenter / Self - Presenter

47 yrs

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