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"Anomalies" Part 3 - Placebos and pain

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Duration: 0:08:42 | Added: 10 Feb 2015
Professor Irene Tracey explains the placebo effect and how it is a normal part of our pain system.

Although it is understood why we have pain – to tell us we are hurt and as a reminder not to do something again – it is not totally understood how the pain system works and how it affects individuals.

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