The immune system is the human body’s first line of defense that protects against viruses, bacteria, foreign invaders and toxicants, both natural and synthetic. When a person’s immune system is strong and healthy, it regulates normal growth and development and protects the person against infections, disease and toxic exposures. When the immune system is weakened, suppressed or overwhelmed you commonly see diseases and chronic conditions develop.
The Modern World
Today’s modern lifestyle and modern world has negatively impacted the developing human immune system to the point where the vast majority of humans living in modern industrial environments demonstrate some form of immune dysregulation, whether that be in the form of allergies, autoimmunity, neuroinflammation, cancer or a decreased capacity to fight infectious diseases.
The human immune system evolved over millions of years to be able to effectively handle interactions with millions of different types of microbes and exposures. And while we didn’t evolve over millions of years alongside synthetic toxicants, our immune system does an incredible job protecting us, nonetheless. Unfortunately, living in the modern industrial world is overwhelming our immune systems and making it very challenging to stay healthy.
What’s Affecting Our Children’s Immune System Today?
The modern lifestyle exposes us to a wide variety of stressors such as:
- Stress
- Trauma
- Emotional overwhelm
- Non-native Electromagnetic radiation (nnEMF)
- Poor nutrition
- Genetically modified foods
- Inmumerable synthetic toxicants
- Polluted air and water
- Vitamin and mineral deficient foods
- Gut bacteria disrupting exposures
- Sleep deprivation
- Artificial light environments
- Social isolation
- Synthetic pharmaceuticals
- Heavy metals
The assaults on a child’s immune system from environmental toxicity and the modern day lifestyle choices have contributed to the increase in chronic immune-related conditions in children that has reached epidemic proportions.
There are record-breaking numbers of autism spectrum disorders, asthma, obesity, childhood diabetes, bipolar disorder, depression, anxiety, obsessive compulsive disorders, allergies, eczema, ADHD, and learning disabilities just to name a few. A dysregulated immune system is a central feature in all of these conditions. By better understanding how the immune system works, we can better understand how to keep our immune systems balanced and functioning well.
The human immune system is extraordinarily complicated and still not fully understood, even by the most expert immunologists.
Let’s take a look at the basics of the immune system so we can understand how it functions and what we can do to optimize immune health.
Cell-Mediated Immunity and Humoral Immunity
Your immune system has two main ways of fighting threats: cell-mediated immunity and humoral immunity.
- Cell-mediated immunity doesn’t use antibodies. Instead, it relies on T-cells (a type of white blood cell) that directly attack infected or abnormal cells. T-cells fight threats in two ways: cytotoxic T-cells destroy infected cells on contact, while other T-cells release signaling proteins called cytokines that coordinate the immune response.
- Humoral immunity works through antibodies. When your body detects a foreign substance — a virus, bacterium, or toxin — B-cells produce antibodies that tag or neutralize the threat. This branch of immunity is especially important for pathogens found in the blood and lymph fluid.
T-Helper Cells: The Coordinators
T-helper cells are white blood cells that recognize threats and direct the immune response. They come in two main types:
- Th1 cells support cell-mediated immunity. They’re most active against viruses and bacteria that invade cells. When Th1 activity becomes chronically overactive, it tends to drive inflammation, which can show up as fatigue, brain fog, or tissue damage. Genetics, environmental exposures, and repeated infections can all push the immune system toward excess Th1 activity.
- Th2 cells support humoral (antibody-based) immunity. They’re most active against parasites, toxins, and allergens. When Th2 activity is chronically overactive, it tends to drive allergic responses — including food sensitivities and conditions like asthma or eczema.
A healthy immune system keeps Th1 and Th2 in balance. When one side becomes dominant, it can suppress the other, disrupting that balance. In autoimmune diseases, this imbalance can cause the immune system to attack the body’s own healthy tissue, worsening symptoms.
The following conditions are the result of either a dominant Th1 or a dominant Th2:
Th1 Dominant Conditions
- Type I diabetes
- Irritable Bowel Syndrome (IBS)
- Multiple sclerosis
- Low T3 syndrome
- Hashimoto’s thyroiditis
- Irritable Bowel Disorder (IBD)
- Grave’s disease
- Rosacea
- Crohn’s disease
- Alzheimer’s
- Psoriasis
- Polycystic Ovarian Syndrome (PCOS)
- Sjoren’s syndrome
Th2 Dominant Conditions
- Lupus
- IgE related allergies
- Allergic dermatitis
- Nasal drip
- Scleroderma
- Airway constriction
- Atopic eczema
- Mucous
- Sinusitis
- Hay fever
- Inflammatory Bowel Disease (IBD)
- Increased stomach acid (GERD)
- Asthma
- Excess histamine
- Seasonal allergies
- Hives
- Cancer
- Chronic fatigue syndrome
- Ulcerative colitis
- Autism spectrum disorders
- Multiple chemical sensitivity
- Graves disease
There are inflammatory diseases and disorders that are neither Th1 nor Th2:
- Autism
- ADHD
- IBS
- Heart disease
- Bipolar disorder
- Schizophrenia
- Obsessive Compulsive Disorder (OCD)
- Ulcerative colitis
- Carpel tunnel syndrome
- Diabetic neuropathy
Addressing the Root Causes of Immune Dysregulation
The immune system doesn’t just fight off colds, it plays a role in nearly every chronic condition, from autoimmune diseases to gut disorders and mental health. When something goes wrong in the body, the immune system is almost always involved, either as a cause, a contributor, or a responder.
Understanding how it functions — how T-cells and B-cells communicate, how inflammation is triggered and resolved, how the body learns to distinguish “self” from “threat” gives you a framework for asking better questions. Instead of only treating symptoms, you can start asking why the immune system is dysregulated in the first place.
- Is it stuck in a state of chronic inflammation?
- Is it having a difficult time clearing an infection?
- Has it lost the ability to regulate itself?
Without this foundation, treatment often addresses the surface while the underlying dysfunction continues. With it, you’re better equipped to identify root causes and pursue solutions that actually resolve the problem rather than just manage it.
About Beth Lambert
Beth Lambert is a former healthcare consultant and teacher. As a consultant, she worked with pharmaceutical, medical device, diagnostic and other health care companies to evaluate industry trends.
She is the author of A Compromised Generation: The Epidemic of Chronic Illness in America’s Children (Sentient Publications, 2010). She is also a co-author of Documenting Hope's Brain Under Attack: A Resource for Parents and Caregivers of Children with PANS, PANDAS, and Autoimmune Encephalitis. She is a co-author of Reversal of Autism Symptoms among Dizygotic Twins through a Personalized Lifestyle and Environmental Modification Approach: A Case Report and Review of the Literature, J. Pers. Med. 2024, 14(6), 641.
In 2009, Beth founded Documenting Hope and currently serves as Executive Director. Beth attended Oxford University, graduated from Williams College and holds a Masters Degree in American Studies from Fairfield University.
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