They are the miracle pills that shouldn't really work at all. Placebos come in all shapes and sizes, but they contain no active ingredient. Now they are being shown to help treat pain, depression and even alleviate some of the symptoms of Parkinson's disease. Horizon explores why they work, and how we could all benefit from the hidden power of the placebo.
阿克塞尔·阿隆索 海莉·阿特维尔 杰瑞·康威 路易斯·德·埃斯波西托 阿伦·费恩 赛斯·格林 克拉克·格雷格 吉米·坎摩尔 斯坦·李 Ralph Macchio 托德·麦克法兰 帕顿·奥斯瓦尔特 尼科尔·帕尔曼 乔·奎萨达
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