Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Season 61 · Episode 1 ·
Confessions of a Brain Surgeon
Top brain surgeon Henry Marsh is facing his own life-threatening diagnosis. He reveals the huge risks and emotional impact of a job filled with difficult life-and-death decisions. This heartwarming portrait of an eccentric surgical hero facing the end of his life reveals the truth about brain surgery and its human impact, with devastating emotional power and life-affirming honesty.
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Episode 1 of season 61 of Horizon: “Confessions of a Brain Surgeon”. Aired 2025-08-18. Watch it online free on ZapFlix.