导演：
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HD
片长：
50分钟
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剧情：
Michael Mosley explores the latest science about how our personalities are created - and whether they can be changed. Despite appearances, Mosley is a pessimist who constantly frets about the future. He wants to worry less and become more of an optimist. He tries out two techniques to change this aspect of his personality - with surprising results. And he travels to the frontie...