from Part III - Special Populations and Special Topics
Published online by Cambridge University Press: 18 September 2020
Pain is the most common complaint in primary care medicine, with approximately one-third of the world’s population currently experiencing some type of chronic pain [1]. It’s not always a bad thing; pain serves an evolutionary purpose of warning us of unwellness. But when this signal persists, changes within the peripheral and central nervous systems perpetuate the process, leading to chronic pain (defined as experiencing pain for longer than 3–6 months) [1]. Thus, chronic pain is not merely a symptom of an underlying condition; it is a disease in itself and must be treated as such.
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