How the Immune System Works (+ 8 Ways to Give It a Boost!)

Written by Nikki Lyn Pugh

Reading Time: 7 minutes

Feeling great happens from the inside out! Perhaps no other system in the body demonstrates this concept better than your immune system. Read on to discover how the immune system works… and eight ways you can make it even stronger.

How Does the Immune System Work?

Your immune system is your “first line of defense” against bacteria, fungi, toxins, and even malignant cells that can lead to serious diseases in your body. In layman’s terms, here are just some of the things immune system cells can do:

  • Some immune system cells shoot out particles that can open the cell membranes of pathogens like viruses and bacteria.
  • Other cells work together to surround invaders and emit poisonous substances which kill the “bad guys” on contact.
  • Others are like garbage collectors; their job is to “eat up” unfriendly substances in the body.
  • Still, others are on “special assignment” to search out particular pathogens. Natural Killer Cells [1], designed to hunt out and destroy cancer cells, are examples of this.

Your Immune System Is All Around You

Your immune system connects and interacts with just about every other system in your body, including the circulatory system, the digestive system, the lymphatic system, the detoxification pathways, and even your brain.

A little-known fact is that up to 80% of our immune system cells are in the upper GI, more specifically in the mucosal lining of the small intestinal tract [2]. This is why gut health is so important for overall immune system health.

Also, new research, such as a January 2018 investigation conducted at the University of Texas’ MD Anderson Cancer Center [3], shows that more immune system functions occur in the brain than previously thought through glial cells of the neuroimmune system. These cells exist in the central nervous system and are designed to protect brain neurons from damage.

The immune system consists of billions of cells that perform hundreds of vital functions. Their daily routine is not unlike secret soldiers on the front lines of a battlefield – seeking out and destroying invaders without you ever knowing about it!

Autoimmunity: When Our Toxic World Catches Up to Us

chart on chronic inflammation and diseaseWith all this talk about what a great job the immune system does at destroying the “bad stuff,” one question you may ask is: What about people with autoimmune conditions? Doesn’t this mean that the immune system attacks things that it shouldn’t, like healthy cells?

In America and all over the world, we see an epidemic of autoimmune-related conditions. If you are reading this, there is a good chance that an autoimmune condition affects you or someone you know.

Here are three important (and surprising!) stats about autoimmunity:

  1. The American Autoimmune Related Disease Association estimates that approximately 50 million Americans [4] suffer from some form of autoimmune disease. This is about one in six Americans.
  2. Common autoimmune conditions include rheumatoid arthritis, lupus, multiple sclerosis, chronic Lyme disease, celiac disease, Crohn’s disease, and fibromyalgia. But there are many other conditions that are also autoimmune-related such as type 2 diabetes [5], autism [6], asthma [7], eczema, allergies [8], and some food intolerances [9].
  3. Some experts state that up to 90% of all people diagnosed with hypothyroidism suffer from an autoimmune condition called Hashimoto’s thyroiditis [10].

8 Ways to Make Your Immune System Stronger

The rise in autoimmune conditions is just one example of how our bodies are responding to a world where the air, water, and food is more toxic than ever [11]. Additionally, our lifestyles are more sedentary, stressful, and sterile than ever before.

The good news is that the general tips listed below can help you to rebalance and revitalize your immune system naturally:

#1: Clean up your diet.

Eating a healthy, whole foods, green-centered diet is probably the best thing you can do for your immune system. This includes going 100% organic and non-GMO, as well as eating plenty of colorful vegetables and fruits.

Focusing on getting more healthy sources of omega-3 fats [12] as well as fewer simple carbs and sugars is a must according to most experts. Many individuals who have chronic conditions like autoimmunity benefit from going gluten-free and dairy-free as well.

#2: Balance your gut.

Restoring the right balance in your microbiome is key if you want to help your immune system. Researchers at Johns Hopkins University say that the gut is where “bacteria and the immune system meet [13].” Not only do most of your immune system cells reside in your digestive tract, but research over the last decade has also shown that we house more bacterial cells than human cells, most of them residing in the gut.

Supplementing with probiotics is important, but remember that these friendly bacteria are living things that need to eat. Prebiotics are the “food” of healthy gut bacteria.

Some good examples of prebiotics are:

  • Raw garlic
  • Raw dandelion greens
  • Raw leeks
  • Onions (raw and cooked)
  • Jerusalem artichoke
  • Asparagus
  • Green bananas

Apples are also considered by many to be prebiotic because they contain pectin, which increases levels of the long-chain amino acid butyrate. According to researchers at the University of Naples in Italy [14], butyrate helps to nourish healthy bacteria while decreasing harmful bacteria.

#3: Stay hydrated.

Staying hydrated is crucial for maintaining good immunity since water helps carry oxygen to the cells of your body and assists in flushing out the waste products.

Perhaps most importantly, however, drinking enough water helps lymph fluid continue to flow. The lymph system is an integral part of the immune system. Lymph nodes throughout the body are where B and T lymphocytes (two types of white blood cells) are produced.
how the immune system works infographic

#4: Support your liver.

Your liver is your main pathway of detoxification as well as nutrient assimilation. Your immune system cannot be at its best when the liver is sluggish and slow. In addition to going organic with what you eat, removing sources of toxins in your household products and sundry items are good actions to take to lower your toxic load.

Consider cleansing herbs like milk thistle, which research shows can significantly help both your detoxification pathways and your immune system.

#5: Lower stress.

How stressed are you every day? Stress can absolutely affect your immune system. There are many vehicles for this connection, but perhaps the biggest has to do with hormonal reactions to chronic stress. When you are stressed, cortisol is released, inflammation is heightened, and key functions of the immune system, such as the production of immune system cells needed to fight infection, shut down.

In contrast, when you are calm, the body receives this as a signal to kick in “healing hormones” such as serotonin [15]. The body cannot rest, digest, and heal when it is in stress mode. Period!
Man running outside

#6: Get regular exercise.

Exercise helps the immune system by causing changes in antibodies and white blood cells through increased circulation.

When circulation is increased, the body speeds up the rate in which immune system cells discover and destroy opportunistic pathogens.

Did you know that some immune-system conditions, like asthma, can be helped directly through exercise? A recent Iranian study published in the journal Trends in Life Science [16] found that aerobic exercise can help asthmatics by balancing insulin levels.

#7: Take care of your teeth and gums.

Getting adequate oral care directly relates to an improved immune system. A 2007 World Health Organization report addressed the major health problem of oral health:

“The strategy is that oral disease prevention and the promotion of oral health needs to be integrated with chronic disease prevention and general health promotion as the risks to health are linked [17].”

The connection between oral and immune system health is obvious: every harmful bacterial substance that can remain within the deep pockets of your gums will eventually spill out into the rest of your body.

Make sure to get regular check-ups, ideally with a holistic dentist who can check your mouth for cavitations [18]. A qualified holistic dentist will also be able to advise you about bacteria-filled root canals and amalgam fillings which contain mercury.

#8: Get enough sleep.

According to the Mayo Clinic [19], lack of sleep can increase the likelihood of getting sick after viral exposure, and can also increase the risk of diabetes, obesity, and cardiovascular disease.

A 2012 study by the University of Tübingen in Germany [20] found that “[s]leep and the circadian system exert a strong regulatory influence on immune functions,” including the production of immune system cytokines, some of which are only created during sleep.

Most experts advise getting at least 8 hours of quality sleep (10 hours or more for children and teenagers).

Key Supplements That Can Fortify Your Immune System

The lifestyle changes mentioned above are essential when it comes to kicking your immune system into high gear. Sometimes all this is not enough, however. In addition to the above steps, you might also consider taking sources of key nutrients which have been shown to significantly aid the immune system.

Vitamins and minerals that directly help to support the immune system include:

Other plants which studies have shown contain high immune system potency include:

And finally, don’t rule out the power of the mind [21]! Visualize every one of your immune cells in balance and pulsating with vibrant energy. Then see all that good health flooding every part of your body and mind every day!

7M+ from Organixx contains 7 of nature’s most powerful mushrooms for anti-aging, longevity, and immune support. Using centuries-old knowledge of the power of nutritional mushrooms and our breakthrough new formulation process we’ve unleashed the power of mushrooms in a way never before done.

Nikki Lyn Pugh
Nikki Lyn Pugh, MFA, INHC is a natural health researcher and writer. She is also an integrative nutritional health coach specializing in autoimmune conditions, chronic stress, and energy medicine. She loves to inspire people to become empowered with their health through education and gentle guidance. Nikki lives and works in Cottonwood, AZ, with her bunny "Mr. Dot."


Article Summary

  • The immune system is your body’s first and best line of defense against illness and toxins.

  • The immune system connects and interacts with just about every other system in the body.

  • 80% of your immune system is in the GI tract, which is why gut health is so important to overall immune function.

  • 8 ways to build your immune system:

    1. Clean up your diet
    2. Balance your gut
    3. Stay hydrated
    4. Support your liver
    5. Lower stress
    6. Get regular exercise
    7. Take care of your teeth and gums
    8. Get enough sleep
  • Vitamins and minerals that directly help to support the immune system include:

    • vitamin D3 (in conjunction with vitamin K2)
    • vitamin C
    • vitamin B 12
    • selenium
    • magnesium
    • iodine

Reader Interactions


    • Hi Christina, thank you for your question.

      Our proprietary fermentation process is unlike any other manufacturing process being used to create supplements.

      We use the already potent properties of Nutritional Mushrooms including Turkey Tail, Chaga, Shiitake, Maitake, Cordyceps, Lion’s Mane, and Reishi. Then we use our patented fermentation process that brings these ingredients to the next level.

      We’re one of only two companies who use this technology to get the most out of each ingredient.

      At this time, we are not able to divulge our supply details and the processes to create the 7M+ as they are proprietary information. However, please feel free to check out this page to learn more about the ingredients and health benefits of the 7M+: You may also check out the ingredient label, price information, and customer reviews on this page:

      Please let us know if there is anything else we can help you with.

      Thank you for your interest in Organixx. Wishing you a great day!

    • Hi Marylin, thank you for your question and interest.

      We would be more than happy to answer your question about consuming several Organixx products at the same time.

      Organixx researches and develops a broad range of nutritional supplements to assist people in accomplishing a wide range of health goals. Some of our supplements are developed and designed to be taken together, as a system. Others were created for a more specific, targeted health goal.

      While most should have no issue consuming all of our nutritional supplements together, it is always a wise step to consult with your primary healthcare practitioner related to your own unique health needs and health challenges. When taking multiple products in conjunction with one another, you can always start slowly with smaller doses and gradually work your way up to the recommended dosage per product.

      Also, we recently published an article on how you can get the best results from your Organixx supplements. Feel free to check it out here:

      We hope this helps and wish you all the best on your wellness journey!!

Load more comments

Leave a Reply

Your email address will not be published. Required fields are marked *