What causes it, how it develops, and what we can do about it
Hashimoto’s, rheumatoid arthritis, lupus — they have different names, but they share the same story. At Hansen Health Solutions in San Antonio, we look past the label to find what started the fire and what keeps it burning.
Your immune system works like a well-run fire department. It has firefighters (white blood cells) who respond to emergencies, dispatchers (cytokines) who coordinate the response and direct crews where they're needed, and investigators (antibodies) who identify exactly what the threat is and tag it for the crew.
In a healthy system, this fire department is disciplined and precise. When there's a real fire — an infection, a toxin, an abnormal cell — the department responds quickly and effectively. They put out the fire. And then they go back to the station.
Autoimmunity is what happens when the fire department loses the ability to tell the difference between a real fire and a safe home. The immune system — which is supposed to protect you — begins attacking your own healthy tissues as if they were threats. Imagine if there wasn't a fire, but the fire department selected homes at random and began soaking them inside and out with the firehose, using their axes to break windows, open holes in the roof, and knock down doors. That's autoimmunity — an aggressive response to things that aren't actually threats.
When the internal environment becomes chaotic — chronic stress, poor nutrition, lack of sleep, a compromised gut — it's like the dispatch center becoming overwhelmed. Think of a dispatch center during a massive crisis: phones ringing off the hook, bad intel coming in from every direction, exhausted operators making split-second decisions.
In that chaos, crews get sent to the wrong addresses. They start treating every call as a five-alarm fire. Firefighters spray down anything and everything — not just what's actually on fire. They break down the wrong doors. They damage homes that were perfectly fine. The more "flammable" the internal environment (the more stressed, inflamed, and depleted the body is), the more overwhelmed the system becomes, and the more collateral damage results.
Autoimmune disease doesn't appear overnight. It develops through a predictable progression — often over years or decades. Understanding where you are is critical, because the earlier we intervene, the more we can do.
Research has established that autoimmune disease requires all three of the following ingredients. Remove any one, and the disease process stalls or reverses.
The blueprint determines what the house is made of (genetics). The locks on the doors determine what can get inside (gut integrity). The neighborhood determines what threats are nearby (environment). You need problems with all three for a fire to take hold. This is why two people with the same genetic risk can have completely different outcomes.
Your genetic makeup determines the blueprint of the house — what materials it's built with, which rooms are more vulnerable, and where the structural weak points are. Some people are born with houses made of more flammable materials than others.
But here's the important part: having the blueprint doesn't mean the house will catch fire. Genes are not destiny. Through epigenetics, we can influence how genes express themselves — up-regulating protective genes and down-regulating risky ones.
This is what makes our comprehensive genomic mapping program so valuable:
Intestinal permeability — commonly called "leaky gut" — is one of the three required ingredients for autoimmune disease. The gut lining is a single-cell-thick barrier that decides what gets absorbed into the bloodstream and what stays out.
When this barrier breaks down, large molecules — undigested food proteins, bacterial toxins (LPS), and other antigens — leak through into the bloodstream. The immune system encounters these molecules and mounts an attack. If those molecules resemble your own tissues (molecular mimicry), the immune system attacks your tissues too.
Your gut lining is the front door of the house. In a healthy state, the door is solid, the locks work, and only authorized things get in. When the door breaks down — anything from the outside can walk right in. And once something unauthorized is inside, the fire department goes on high alert.
This is why gut health is central to every autoimmune case. Restoring the gut barrier addresses one of the three required ingredients directly. See our GI Map Testing page.
Environmental triggers are the exposures that start the fire in someone whose house is vulnerable. The assumption is that these things got into the house through the gut until proven otherwise.
Conventional medicine typically focuses on what's burning — identifying the specific tissue under attack and naming it. "Couch on fire? We call that Rheumatoid Arthritis." "Kitchen on fire? We call that Lupus." "Drapes on fire? We call that Hashimoto's."
From a functional perspective, the fire is the main problem. If you only focus on the drapes, you're ignoring the fire and accepting — even inviting — the fire to spread and start burning other things. Our approach asks: What started the fire? How did it get in? How do we put it out? And how do we fireproof the house so it doesn't happen again?
Both approaches have value. Conventional medicine is essential for acute management, monitoring, and diagnosis. But functional wellness looks for the root cause — the fire itself — and works to restore the conditions under which the body can heal and maintain balance.
The more resilient the house is internally, the more it can withstand from the outside. When internal defenses weaken and external exposures increase, the house becomes dangerously flammable.
When the house is well-maintained — good nutrition, healthy gut, balanced hormones, adequate sleep — it can withstand significant external exposure. But when the house has been neglected and the threats keep coming, it doesn't take much to start a fire.
One of the most important concepts in autoimmunity is the Dynamic Symptom Threshold — the invisible line between feeling fine and feeling sick.
This threshold is dynamic — it moves. On a good day (good sleep, low stress, clean diet), the house is more fireproof and can contain more before symptoms break through. On a bad day (poor sleep, high stress, dietary trigger), the house becomes more flammable and even a small fire causes symptoms.
This is why autoimmune patients often describe good days and bad days. It's not random — it's the threshold moving in response to daily inputs.
A functional wellness approach focuses on systematically minimizing the inputs that push you above threshold — reducing inflammatory triggers, supporting gut integrity, optimizing sleep and stress management, and ensuring adequate nutrition. The goal isn't just to get through flare-ups when they happen, but to keep the baseline low enough that the fire stays contained and the threshold stays high. Over time, this means fewer flare-ups, less silent damage, and a wider margin of safety on any given day. The more we can reduce the total load on the system, the further below threshold you stay — and the more resilient you become.
One of the most powerful tools we have is the ability to detect autoantibodies — immune markers that appear in the blood years or even decades before symptoms develop. Research has consistently shown that autoantibodies can be present long before a person ever feels sick.
"Autoantibodies have been detected in the serum of asymptomatic subjects years before clinical manifestations become evident — across conditions including rheumatoid arthritis, lupus, type 1 diabetes, celiac disease, and many others."
This means we don't have to wait for the house to be visibly on fire. We can detect the smoke early — while the fire is still small — and intervene before irreversible structural damage occurs. If you only focus on what's burning (the drapes, the couch, the kitchen), you're ignoring the fire itself and accepting that it will spread.
Advanced panels like Cyrex Array 5 (our Autoimmune Reactivity Screening) can screen for autoantibodies targeting multiple tissue types simultaneously — identifying which parts of the house are on fire and what may have started it.
When working with autoimmune patients, our clinical approach is built around answering specific questions at each step of the story — because the answers determine the plan:
Let’s talk about your health story and whether our approach is the right fit — no cost, no obligation.