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Why Does Pain Hurt?

Why Does Pain Hurt?

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Why does something hurt, and where does that sensation actually come from? In this episode, we follow pain signals from nerve endings that detect potential danger through the spinal cord and into the brain. We explore why we pull a hand away from something hot almost before thinking, why rubbing a bumped elbow can briefly reduce discomfort, and how stress, attention, expectations, and past experiences can change how much something hurts. We also explain why pain and tissue damage are not always perfectly matched, and how a protective alarm system can sometimes become unusually sensitive.

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