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Chronic pain

https://www.ted.com/talks/elliot_krane_the_mystery_of_chronic_pain

Watch the 8-minute Ted Talk (Links to an external site.) on chronic pain. Then answer the following questions in a minimum of a 1000-word essay.

Explain how the nervous system processes pain and can misinterpret pain (you may not use the Ted Talk examples of explaining pain).
Explain the role of glial cells and positive feedback loop (you may not use the Ted Talk examples).