09/24/2026
Why are we seeing so many people struggling with POTS, dysautonomia, MCAS-like symptoms, hypermobility disorders, and ME/CFS — often at younger ages?
From a functional and integrative medicine perspective, this is a question worth asking.
Part of what we are seeing is undoubtedly better recognition and diagnosis.
For years, patients with complex symptoms were told:
“You’re just anxious.”
“Your labs are normal.”
“You need to exercise more.”
“It’s probably stress.”
Meanwhile, they were living with dizziness, tachycardia, migraines, profound fatigue, exercise intolerance, GI problems, pain, brain fog, allergic-type symptoms, sleep disturbances, and recurrent injuries.
Today, clinicians understand these patterns better.
But recognition may not be the entire story.
Functional medicine asks another important question:
What changed in the terrain?
Genes matter, but genes don’t operate in isolation.
Your genetics may influence methylation, detoxification pathways, inflammatory signaling, nutrient metabolism, connective tissue, immune responses, and susceptibility to certain conditions.
But genetics interact continuously with the environment.
This is where epigenetics becomes important.
Nutrition. Sleep. Stress. Physical activity. Infections. Medications. Environmental exposures. Hormonal changes. The microbiome. Social connection.
All of these can influence physiology and, in some cases, gene expression.
And our modern environment has changed dramatically.
We are exposed to air pollution, plastics, pesticides, industrial chemicals, highly processed foods, disrupted circadian rhythms, sedentary lifestyles, chronic psychological stress, and unprecedented levels of digital stimulation.
At the same time, many people are sleeping less, moving less, spending less time outdoors, eating fewer nutrient-dense whole foods, and living with persistent sympathetic nervous-system activation.
Then we add potential physiologic stressors:
• Viral and other infections
• Post-infectious syndromes, including Long COVID
• Nutrient deficiencies
• Hormonal transitions
• Gut dysfunction and microbiome disruption
• Chronic inflammation
• Environmental exposures
• Poor sleep and circadian disruption
• Physical trauma or surgery
• Prolonged psychological stress
For a susceptible person, there may not be one single cause.
There may be an accumulation of stressors until the body’s ability to compensate is exceeded.
Think of it as a bucket.
Genetics and underlying biology determine the size and characteristics of the bucket.
Then life begins filling it.
Stress. Infection. Poor sleep. Nutrient depletion. Hormonal changes. Environmental exposures. Inflammation. Trauma.
Eventually, something may become the tipping point.
That doesn’t mean every person with POTS, MCAS, ME/CFS, or a hypermobility disorder has the same underlying drivers — they absolutely do not.
And it doesn’t mean these conditions can simply be fixed by “detoxing,” changing a diet, or taking supplements.
These are real and often complex medical conditions that deserve appropriate evaluation and evidence-based care.
But functional medicine gives us another lens:
Instead of asking only, “What diagnosis does this person have?” we also ask, “What factors could be contributing to this person’s physiology?”
What happened before the symptoms started?
How is their autonomic nervous system functioning?
What is their nutritional status?
How are they sleeping?
What does their metabolic health look like?
Are hormones playing a role?
What is happening in the GI tract?
Was there an infectious trigger?
What environmental exposures are relevant?
What medications are they taking?
What is perpetuating inflammation or physiologic stress?
And most importantly:
Which of those factors can we safely and realistically modify?
This is why two people carrying the same diagnosis may need very different treatment strategies.
Functional medicine isn’t about blaming every illness on “toxins” or finding one magical root cause.
It’s about recognizing that human physiology is interconnected — and looking at the whole person, their history, their environment, and their individual biology instead of treating every symptom as an isolated problem.
Sometimes the diagnosis is the beginning of the investigation, not the end.
Restore. Rebuild. Renew.
