Getting Chiropractic Adjustments Can Boost Your Immune System

Your nervous system controls and signals to your immune system to boost and fight infection and your endocrine system to help with hormone balance. When you have nerve pressure in your spine from injury or arthritis this can cause your nervous system not to send signals out and can cause your immune system and endocrine system not to work at 100%.


The nervous, immune, and endocrine systems share tiny messenger molecules that mediate communication between them. One of these messenger molecules, IL-2, used to be classically thought of as an immune system molecule; however, studies published within the past decade have clearly shown IL-2's presence and activity in the nervous system (click here for more information). One recent pioneering study,"Enhancement of in vitro interleukin-2 production in normal subjects following a single spinal manipulative treatment"(click here for the article) clearly demonstrated an increase in IL-2 levels and also in the function of T-cells, which are key players in the immune system's army of cells, following chiropractic adjustment. The authors concluded that chiropractic adjustment can influence the biological immune response.

In another elegant study by Selano et al, "The Effects of Specific Upper Cervical Adjustments On The CD4 Counts of HIV Positive Patients'" (Chiropractic Research Journal 1994; 3(1): 32-39), the effects of six months of regular chiropractic care on the immune system function of HIV patients was measured. At the end of six months of care, the patients who had received regular adjustments had a 48% increase in the number of CD4+ T cells (p=0.06), whereas the patients who were not adjusted had an 8% decrease in CD4+ cells.

A series of studies published in the Journal of Manipulative and Physiological Therapeutics (JMPT) by Brennan and Triano showed that several types of immune system cells, including phagocytes, neutrophils, and PMNs, showed increased biological activity after chiropractic adjustment. Links to the PubMed abstracts can be found here and here. These studies all suggest that chiropractic adjustment can enhance immune system function.

The idea that chiropractic care can help the immune system work better is not a new one. In fact, this concept has been supported by credible data for a century. For example, Dr. Dan Murphy compiled some very interesting data regarding the use of chiropractic care during the Influenza Epidemic of 1918. Click here for an excerpt. According to the statistics presented in this excerpt, influenza patients who were under chiropractic care rather than medical care during this epidemic had significantly higher survival rates. (Note: some cite the success of chiropractic treatment in this epidemic as the historical turning point that allowed chiropractic care to survive as a profession.)

The endocrine system's main players are epinephrine (also known as adrenaline), nor-epinephrine, and cortisol. These molecules are produced in the adrenal glands, endocrine glands which have direct connections with the nervous system by way of a division called the sympathetic nervous system. Cortisol in particular is a stress hormone that inhibits the immune system (which is why stress really can make you sick!) So if the sympathetic nervous system is too "turned on" due to stress and subluxation, it can increase the adrenal glands' synthesis of cortisol, in turn affecting the immune system. Vertebral subluxation promotes this exact situation (see here for and article abstract and here for an full article describing this).

For more information about how chiropractic care can help the immune system function better, visit www.chiro.org/research and www.icpa4kids.org.

Vitamin D Do-Daa!

Let's talk about the infamous sunshine vitamin, Vitamin D! Vitamin D is an important and powerful nutrient in our bodies. It's cool because not only can we get it from the foods we eat but our body can make it with adequate exposure to sunlight. WOW, right?
   
*Note: Sunlight must be in a specific wavelength range in order for our bodies to be able to use it to make    Vitamin D. This range occurs daily in the tropics, however only during the spring and summer months in most of the United States. So during the winter if you don't have a UV light to sit in front of, you must consume Vitamin D to get it in adequate amounts.

So where can you get Vitamin D?
Vitamin D is a fat soluable vitamin, so most of the time it is found in certain fatty foods such as milk, fish, egg, beef liver, cod liver oil, and for vegans in irradiated mushrooms and yeast. There are also many products available in stores that have Vitamin D fortification such as milk or orange juice. However, there are also supplements on the market that come in a variety of amounts, flavors, and even forms. I personally think the D3 liquid drops are the easiest to use, but have heard that many people like the flavored forms as well.
Another way to get some (but not all of your daily intake) Vitamin D is from sunlight exposure, however during the winter months sun exposure isn't in the correct range for Vitamin D benefits. Most people only need 10-30 minutes of sun exposure 2-3 times per week for adequate sun exposure for Vitamin D benefits, however this is with skin exposure with NO sun screen. Alternately, UV lights can be used indoors during the winter months to get your daily intake. If you have a family history or increased risk of skin cancer, you should talk to your doctor first before using sunlight or UV lights as a Vitamin D method.

How much is enough? 
There is a lot of controversy on how much your daily value of Vitamin D should be, due to new research that is showing that Vitamin D has protective effects against cancer and other health conditions and in deficient amounts can exacerbate conditions such as obesity, glucose/insulin dysfunction, and even cause diabetes. The best way to determine if you are getting enough Vitamin D is to have your doctor do a serum blood test for 25- hydroxyvitamin D or 25(OH)D. Levels of 50 ng/mL or 125nmol/L or higher reveal beneficial effects, however current thresholds are outdated with levels at 30ng/mL being adequate. If the standard threshold was raised today, 90% of Americans would be Vitamin D deficient!

Currently the United States Institute of Health (by dietary intake only) recommends the values in the tables below, however many health care and nutritional advocates recommend double to triple that amount for real benefits. Generally speaking, Vitamin D intake needs to increase based on body mass and thus a better guideline might be obtained by using the daily maximum (Tolerable Upper Intake Levels) as an amount not to exceed for your age group. I usually recommend 1000 to 2000 IU/day for most of my patients, however you need to consult your doctor before beginning a regiment.

**The below values were obtained from the Institute of Health, but some medications can cause interactions so consult your doctor before taking any new supplements.

Recommended Dietary Allowances (RDAs) for Vitamin D 

Age	Male	Female	Pregnancy	Lactation
0–12 months*	400 IU (10 mcg)	400 IU (10 mcg)
1–13 years	600 IU (15 mcg)	600 IU (15 mcg)
14–18 years	600 IU (15 mcg)	600 IU (15 mcg)	600 IU (15 mcg)	600 IU (15 mcg)
19–50 years	600 IU (15 mcg)	600 IU (15 mcg)	600 IU (15 mcg)	600 IU (15 mcg)
51–70 years	600 IU (15 mcg)	600 IU (15 mcg)
>70 years	800 IU (20 mcg)	800 IU (20 mcg)

* Adequate Intake (AI)

Tolerable Upper Intake Levels (ULs) for Vitamin D 

Age	Male	Female	Pregnancy	Lactation
0–6 months	1,000 IU (25 mcg)	1,000 IU (25 mcg)
7–12 months	1,500 IU (38 mcg)	1,500 IU (38 mcg)
1–3 years	2,500 IU (63 mcg)	2,500 IU (63 mcg)
4–8 years	3,000 IU (75 mcg)	3,000 IU (75 mcg)
≥9 years	4,000 IU (100 mcg)	4,000 IU (100 mcg)	4,000 IU (100 mcg)	4,000 IU (100 mcg)

Why do I need Vitamin D?
Vitamin D deficiency has been linked with higher mortality rates, increased incidence of low bone mass and falls, immune system dysfunction, higher rates of multiple sclerosis, higher rates of certain cancers,  higher rates of vascular disease, higher rates of autoimmune disorders such as rheumatoid arthritis, Parkinson's disease, Alzheimer's Disease, and many other health conditions.
Vitamin D is responsible for calcium absorption from the intestine, maintenance of calcium and phosphorus levels in the blood, maintenance of bone health and bone cell support, adrenal function and health, cell function and differentiation, immune system support, and many other actions that aren't fully understood by scientists yet. As you can tell, Vitamin D is important to maintain your body's health and function but also to help prevent many health conditions and aging processes.