Palmer hypothesized that vertebral joint misalignments, which he termed vertebral subluxations, interfered with the body's function and its inborn ability to heal itself.[5] D. D. Palmer repudiated his earlier theory that vertebral subluxations caused pinched nerves in the intervertebral spaces in favor of subluxations causing altered nerve vibration, either too tense or too slack, affecting the tone (health) of the end organ.[41] D. D. Palmer, using a vitalistic approach, imbued the term subluxation with a metaphysical and philosophical meaning.[41] He qualified this by noting that knowledge of innate intelligence was not essential to the competent practice of chiropractic.[41] This concept was later expanded upon by his son, B. J. Palmer, and was instrumental in providing the legal basis of differentiating chiropractic from conventional medicine. In 1910, D. D. Palmer theorized that the nervous system controlled health:


Your neck and shoulders contain muscles, bones, nerves, arteries, and veins, as well as many ligaments and other supporting structures. Many conditions can cause pain in the neck and shoulder area. In fact, neck pain is the third most common type of pain according to the American Pain Foundation. It is estimated that 70% of people will experience neck pain at some point in their lives.

DCs may assess patients through clinical examination, laboratory testing, diagnostic imaging and other diagnostic interventions to determine when chiropractic treatment is appropriate or when it is not appropriate. Chiropractors will readily refer patients to the appropriate health care provider when chiropractic care is not suitable for the patient’s condition, or the condition warrants co-management in conjunction with other health care providers. 
Neck pain results when the spine is stressed by injury, disease, wear and tear, or poor body mechanics. Acute neck pain is abrupt, intense pain that can radiate to the head, shoulders, arms, or hands. It typically subsides within days or weeks with rest, physical therapy and other self-care measures. You play an important role in the prevention, treatment and recovery process of neck pain. However, if chronic, pain will persist despite treatment and need further evaluation.

Dr. Grotzinger completed his pre-med at Drake university in Des Moines with a 4.0 GPA in 1976. He graduated from Palmer Chiropractic, Magna Cum Laude in 1981 having worked nights and fathering three children in the process. Since then he has worked both in solo practice and a number of multi-doctor clinics, gaining a wide variety of experience and proficiency. He prides himself on being an effective chiropractor who has balanced the ways of the old time chiropractors with today's emphasis on patient comfort.
Some chiropractors oppose vaccination and water fluoridation, which are common public health practices.[32] Within the chiropractic community there are significant disagreements about vaccination, one of the most cost-effective public health interventions available.[221] Most chiropractic writings on vaccination focus on its negative aspects,[27] claiming that it is hazardous, ineffective, and unnecessary.[28] Some chiropractors have embraced vaccination, but a significant portion of the profession rejects it, as original chiropractic philosophy traces diseases to causes in the spine and states that vaccines interfere with healing.[28] The extent to which anti-vaccination views perpetuate the current chiropractic profession is uncertain.[27] The American Chiropractic Association and the International Chiropractors Association support individual exemptions to compulsory vaccination laws, and a 1995 survey of U.S. chiropractors found that about a third believed there was no scientific proof that immunization prevents disease.[28] The Canadian Chiropractic Association supports vaccination;[27] a survey in Alberta in 2002 found that 25% of chiropractors advised patients for, and 27% against, vaccinating themselves or their children.[222]
Among people seeking back pain relief alternatives, most choose chiropractic treatment. About 22 million Americans visit chiropractors annually. Of these, 7.7 million, or 35%, are seeking relief from back pain from various causes, including accidents, sports injuries, and muscle strains. Other complaints include pain in the neck, arms, and legs, and headaches.
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