Adaptation Can Hide Severity

Hi, I’m Rebecca Helps, founder of Health Story Lab.

In this audio essay, we’re going to look at how adaptation and coping can make illness harder to see—for you, for the people around you, and for the healthcare system—and why that matters for symptom literacy.

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1. A small piece of my story

For years I lived with headaches, digestive issues, and a level of fatigue that didn’t match how I was living my life. I was doing what I was “supposed” to do: eating reasonably well, exercising when I could, seeing doctors, following up on tests.

What I kept hearing, in different forms, was some version of:
“We can’t find anything wrong,” or “Everything looks fine.”

Much later, when I finally had a clearer sense of what was going on, I could see that my digestive symptoms, my fatigue, and my headaches were all connected. But those pieces had been split across different specialties and different appointments. Each organ looked “okay” in isolation, so nothing was named as a disease.

Looking back, I can also see how much adapting I did. I cut back in some areas, pushed harder in others, reorganized my days, lowered my expectations of myself, and called it “normal.”

On paper, I looked like I was coping. From the outside, it might have looked like I was managing well. Inside, the cost of that coping kept going up.

That tension—between what it takes to adapt, and how things look from the outside—is what this essay is about.

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2. What I mean by “adaptation”

When I use the word adaptation here, I’m talking about a few different layers at once.

There is a biological layer. Bodies are built to adapt to ongoing demands. Researchers like Bruce McEwen use the term allostasis to describe how our systems adjust over time, and allostatic load to describe the wear-and-tear that builds up when those adjustments are happening constantly under stress. Over long periods, that load can contribute to illness, even when any single moment looks “fine.” (PubMed)

There is also a psychological layer. Over time, people recalibrate what “normal” feels like. In quality-of-life research this is called response shift: our internal standards and expectations change, so we may rate our quality of life as “okay” even when our objective health has worsened, because we’ve adjusted to a new baseline. (PMC)

And there is a practical layer. People change how they live. They narrow their activities, rearrange their days, lean on routines, and quietly drop things that take too much out of them. From the outside, this just looks like personality or preference. From the inside, it is often survival.

When I talk about adaptation in this essay, I mean all of those together:
the body, the mind, and daily life continually bending around long-term symptoms.

Adaptation is not a character flaw. It is a sign that systems are trying to keep going.

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3. How adaptation changes what we notice and report

One of the side effects of long-term adaptation is that it changes what we notice about ourselves, and what we feel allowed to call a “symptom.”

If something has been present for years, it may blend into the background. People say things like:

• “I’ve always been like this.”
• “I don’t know if this counts; it’s just my normal.”
• “I only realised how bad it was when it finally lifted.”

Research on quality of life and disability points to a similar pattern. In what’s sometimes called the disability paradox, many people with serious disabilities report good or excellent quality of life, while people without disabilities assume that those lives must be miserable. (PubMed)

That doesn’t mean life is easy. It means people have adapted enough that their sense of “this is my life” has shifted.

Something similar can happen with long-term health problems that don’t have clear labels. As we adjust, it becomes harder to see the full extent of what has changed. Only the sharpest spikes or crashes get registered as “real” symptoms. Everything else is treated as background scenery.

From a symptom literacy perspective, that means a lot of important information never even gets named.

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4. Coping and compensation can hide system strain

Adaptation also shows up in how we function.

You can be:

• showing up to work
• caring for family
• replying to messages
• attending appointments

…and still be doing all of that at a very high internal cost.

People cut back on social time so they can save energy for work. They spend weekends in bed so they can get through Monday to Friday. They drop hobbies and call it “being busy,” when it’s really that they no longer have the capacity.

From the outside, what others see is:

• “You’re still working.”
• “You seem organised.”
• “You’re managing so well.”

Inside, it may feel more like:

• “I’m barely holding it together.”
• “Everything extra has fallen away.”
• “I don’t know how long I can keep this up.”

Research on resilience in chronic pain shows something similar: some people maintain relatively high levels of function and even positive emotion despite significant pain. (PMC) That doesn’t mean the pain is mild. It means a lot of psychological and behavioural resources are being used to compensate.

In everyday life, that compensation is mostly invisible. The system strain sits underneath the appearance of coping.

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5. Disease, dysfunction, and what adaptation makes hard to see

Adaptation hides severity most effectively in a particular territory: dysfunction without clear disease.

Disease, in the medical sense, usually comes with recognisable patterns on tests or imaging—lab values out of range, structural changes, measurable damage.

Dysfunction is different. It’s when systems are not working well, but still fall inside broad “normal” ranges, or don’t match a particular set of diagnostic criteria.

Examples include:

• hormone systems that are technically “within range” but not regulating well for that person
• stress systems that are constantly activated but not yet breaking down in obvious ways
• digestion that moves or absorbs poorly even when scopes and imaging look okay

The concept of allostatic load directly describes this kind of situation: the cumulative “wear and tear” from chronic adaptation under stress, across multiple systems, before overt disease is diagnosed. (Wikipedia)

People can adapt around dysfunction for years. The brain finds workarounds. The schedule shrinks. Expectations shift. As long as they can still meet certain roles, it is easy—for them and for others—to assume that what they’re living with is “not that bad.”

By the time dysfunction becomes obvious enough to register as disease, the story can look puzzling: why is this person only talking about it now? Why didn’t they mention it earlier? Why does the timeline sound so vague?

Often, it’s because adaptation did its job for a long time.

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6. How adaptation leads to misinterpretation and self-blame

The structure of healthcare adds another layer.

Appointments are short. Clinicians are pressed to rule out emergencies, make decisions, and focus on what can be tested or treated. Care is organised into specialties: digestion in one office, hormones in another, pain in another, mood in another.

This isn’t about individual doctors being uncaring. It’s about how the system is set up.

When you walk into that structure having adapted for years, a few things can happen:

• If you look “high functioning,” your situation may be interpreted as less severe.
• If you describe only the sharpest moments and not the ongoing cost of coping, the full picture stays hidden.
• If you’ve normalised a lot of your symptoms, you may not even think to mention them.

On the inside, people often carry a quiet set of conclusions:

• “If I can still do this, maybe it’s not serious.”
• “If the tests are normal and I’m functioning, maybe I’m just weak.”
• “If I’m this tired from things other people handle easily, the problem must be me.”

In that frame, adaptation looks like evidence against illness.
“I’m managing” gets interpreted as “I’m fine,” even when the cost of managing is enormous.

From a systems literacy perspective, adaptation is actually a sign that systems are under ongoing strain. The effort it takes to keep going is itself part of the information about what’s happening, not proof that nothing is wrong.

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7. Bringing this back to Symptom Literacy

This essay is not about judging how anyone copes. It’s not about ranking who is “really sick” or telling you to stop adapting. Adaptation is often what makes life possible.

The point here is different.

It’s to explain why:

• long-term coping and compensation can make illness harder to see
• high functioning can quietly coexist with high strain
• and why people in complex health situations often underestimate their own severity

You are allowed to include the cost of coping in your understanding of your health.

You are allowed to notice that:

• the recovery time after activity
• the number of things you’ve quietly dropped
• the amount of planning it takes to get through a week

are all part of the story, even if you’re still technically “functioning.”

In a systems literacy lens, adaptation doesn’t cancel out symptoms. It sits alongside them.

It reminds us that:

The fact that you’re still managing does not, by itself, tell us how hard your body and mind are working to make that possible.

That effort—the ongoing work of adaptation—is one of the reasons illness can be so hard to see clearly, from the inside and from the outside.