Many chiropractors try to tell us that vaccinations are not necessary, if we receive regular spinal adjustments. This claim is based on the assumption that spinal manipulations stimulate the immune system. Take the text published on this website, for instance:
The nervous system and immune system are hardwired and work together to create optimal responses for the body to adapt and heal appropriately. Neural dysfunctions due to spinal misalignments are stressful to the body and cause abnormal changes that lead to a poorly coordinated immune response. Chiropractic adjustments have been shown to boost the coordinated responses of the nervous system and immune system…
Subluxation is the term for misalignments of the spine that cause compression and irritation of nerve pathways affecting organ systems of the body. Subluxations are an example of physical nerve stress that affects neuronal control. According to researchers, such stressful conditions lead to altered measures of immune function & increased susceptibility to a variety of diseases.
Inflammatory based disease is influenced by both the nervous, endocrine, and immune systems. Nerve stimulation directly affects the growth and function of inflammatory cells. Researchers found that dysfunction in this pathway results in the development of various inflammatory syndromes such as rheumatoid arthritis and behavioral syndromes such as depression. Additionally, this dysfunctional neuro-endo-immune response plays a significant role in immune-compromised conditions such as chronic infections and cancer.
Wellness based chiropractors analyze the spine for subluxations and give corrective adjustments to reduce the stress on the nervous system. A 1992 research group found that when a thoracic adjustment was applied to a subluxated area the white blood cell (neutrophil) count collected rose significantly.
Other websites go even further:
The best way to prevent meningitis, and other illness, is to develop a robust immune system. The most important element in developing a robust immune system is optimum communication between all systems of the body. Chiropractic does this. The goal of chiropractic is to remove interference in the nervous system, the system that controls and coordinates all other parts of the body. Interference is caused by subluxations or misalignments in the spine. When subluxations are corrected, the body’s nervous system functions optimally and boosts the immune functioning. In fact, individuals who receive chiropractic care have 200% greater immune competence than individuals who don’t. This is why it is vital to receive regular chiropractic adjustments…
If we look at the actual research that might support such strange claims, we find that that it is scarce, flimsy and unconvincing. To the best of my knowledge, nobody has yet shown that people who receive regular chiropractic care are protected from conditions mediated via the immune system. Unless such a phenomenon can be demonstrated beyond reasonable doubt, we should be highly sceptical of the claim that chiropractic care stimulates the immune system and thus generates better health. In my view, regular chiropractic adjustments stimulate only one thing: the cash flow of the therapist.
My conclusion: The claim that chiropractic adjustments have such profound effects on human health is highly irresponsible.