According to the "New Model" by Murphy, which is NOT a component?

In the "New Model" proposed by Murphy, the components emphasize understanding the multifaceted nature of musculoskeletal disorders and their effects on the nervous system. The model includes mechanical issues, such as joint problems, which relate to physical dysfunctions; radiculopathy and myelopathy, which address the neurological implications of spinal issues; and aspects of tissue health like collagen breakdown, which contributes to structural integrity and function.

Psychological stress is indeed an important factor in health and can influence the perception of pain and recovery, but it is not explicitly categorized as a core component within the framework of the "New Model." Instead, the focus tends to stay on the physical and biological elements that directly contribute to mechanical dysfunction in the spine and nervous system. Therefore, designating psychological stress as a non-component aligns with the model's emphasis on demonstrating how biological, mechanical, and structural factors intertwine in the context of chiropractic care.