英国纪录《安慰剂的魔力》（2014）完整版全集免费在线观看，Olly Bootle自演，综合评分2.0分，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.