There are over 3 million cases of chronic pain in the United States each year. So what exactly is pain? Pain is defined as acute or chronic. Acute pain can be a sudden, mild pain that lasts only a moment or it can be severe pain that resolves over a few weeks or a few months. Chronic pain is continuous pain that lasts longer than 6 months. The key is that acute pain is pain that goes away, chronic pain usually does not.
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