Here is a great TED talk by neuroscientist Lorimer Moseley about how our bodies' experience pain. He is a funny and engaging speaker as he demonstrates how your brain can create, perceive and amplify pain. Notice the title of his talk!

Lorimer Moseley teamed up with David Butler a number of years ago to create this book called explain pain.  It is a great resource for understanding your body as it relates to pain.

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Enjoy!