Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 46 · Episode 13 ·
The Secret You
With the help of a hammer-wielding scientist, Jennifer Aniston and a general anaesthetic, Professor Marcus du Sautoy goes in search of answers to one of science's greatest mysteries: how do we know who we are? While the thoughts that make us feel as though we know ourselves are easy to experience, they are notoriously difficult to explain. So, in order to find out where they come from, Marcus subjects himself to a series of probing experiments. He learns at what age our self-awareness emerges and whether other species share this trait. Next, he has his mind scrambled by a cutting-edge experiment in anaesthesia. Having survived that ordeal, Marcus is given an out-of-body experience in a bid t
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Episode 13 of season 46 of Horizon: “The Secret You”. Aired 2009-12-22. Watch it online free on ZapFlix.