What is POTS, and why does my heart race?
Why Does My Heart Race When I Stand Up?
Why your heart races when you stand up, how much of a rise is typical and when it's POTS. Check your own numbers and see what the faster heart is making up for.
What Causes the High Heart Rate in POTS?
What causes the high heart rate in POTS? The heart speeds up to rescue blood flow to your brain. Why it happens, what beta blockers reveal and what to measure.
The 3 Types of POTS: Neuropathic, Hyperadrenergic and Hypovolemic
The 3 types of POTS are neuropathic, hyperadrenergic and hypovolemic. What each means, why they overlap, hyperPOTS vs POTS, and how to find your type.
Hyperadrenergic POTS: Symptoms, Causes and Treatment
Hyperadrenergic POTS (hyperPOTS) is POTS with a norepinephrine surge on standing. See the symptoms, how it's tested, what beta blockers miss and what to check.
Orthostatic Intolerance: Symptoms, Types and What Causes It
Orthostatic intolerance means symptoms when you stand that ease when you lie down. Symptoms, causes, and the types: orthostatic hypotension, POTS and OCHOS.
POTS Without the T: When You Have Every Symptom But Don't Qualify
If your blood pressure looks normal and your heart rate doesn't quite qualify, you've been told nothing is wrong. Here's what the standard test misses.
The Autonomic System Isn't a Switch (And Why That Matters)
The autonomic nervous system isn't an on/off switch. Learn why 'sympathetic dominance' is misleading and how specific pathways drive POTS symptoms.
Is it POTS, anxiety or something else?
POTS or Anxiety? How to Tell the Difference
How to tell POTS from anxiety. Learn 3 evidence-based ways to figure out if anxiety drives your symptoms or your physiology drives the anxiety.
Functional Neurological Disorder and POTS
FND is one of the most misunderstood diagnoses. Learn what it actually means, how it connects to POTS, and why 'it's psychological' misses the mechanism.
What Doctors Are Missing in POTS Cases
Why so many POTS cases get dismissed, why clean labs don't mean you're fine, and how a brain-first approach finds what standard workups miss.
Why So Many Dysautonomia Patients Are Misdiagnosed and Mistreated
A POTS diagnosis can be a relief, but for many the treatments still don't work. Here's why, and what understanding your specific mechanism changes.
Small Fiber Neuropathy and POTS: How SFN Drives Dysautonomia
Small fiber neuropathy shows up in a quarter to half of POTS patients tested. How SFN drives dysautonomia, why a skin biopsy can miss it, and what improves it.
Mast Cells and Your Autonomic System: The Connection Nobody Explains
Mast cell activation and POTS connect through specific sympathetic pathways. Learn how histamine drives autonomic dysregulation, and what to do about it.
Can Vitamin Toxicity Be Causing Your POTS?
Can B6 toxicity cause POTS? Learn about vitamin B6 and autonomic nerves, how to start moving again with POTS, and hypoplastic vertebral arteries.
Is Deconditioning Causing Your POTS?
Told deconditioning is causing your POTS? Learn why 'just exercise more' fails, what research shows, and when deconditioning is a symptom, not a cause.
Why do I have symptoms beyond a fast heart rate?
Blood Pooling in Your Legs, Hands and Feet: What Causes It
Blood pooling is blood collecting in your legs, feet or hands when you're upright. What it looks like, when it's normal, and what causes it in POTS.
POTS and Frequent Urination: Why You're Peeing So Much
Peeing all the time with POTS? Salt and water help a little, then your kidneys clear the extra. Why frequent urination happens and what it says about your POTS.
POTS Stomach Issues and Gastroparesis: Why POTS Wrecks Your Digestion
POTS stomach issues, from gastroparesis and nausea to bloating, often trace to how the brain controls the gut. The 3 layers that fail, and a case that resolved.
Brain Fog Isn't a Diagnosis: What's Actually Happening in Your Brain
Brain fog isn't a diagnosis: it's a symptom of processing inefficiency. Learn the neurological causes and why treating the symptom doesn't work.
Ear Fullness and Popping in POTS: The Drainage Problem Behind It
Ear fullness, popping, pressure or ringing with POTS? It often traces to how blood drains from your head. See the mechanism, the evidence and what helps.
Derealization and POTS: Why You Feel Detached From Reality
Feeling detached from reality with POTS? Derealization often follows blood flow to the brain and the balance system. How to tell which, and what to test.
Exercise Intolerance in POTS: It's Not Just Deconditioning
Exercise intolerance in POTS isn't just deconditioning. Learn why 'just exercise more' fails and what's really happening in the brain when you push through.
What helps, and where do the usual treatments stop?
POTS Hydration: How Much Salt and Water Actually Helps
How much salt and water actually helps POTS, where the 2 to 3 liter advice stops working, and the signs your real problem is blood distribution.
POTS Treatment Without Medication: Why Drugs Suppress the Compensation Your Brain Needs
POTS medications manage the compensation. Neurological rehab targets the regulation failure. Understand where each approach works and where it falls short.
How SSRIs Affect POTS Symptoms: What You Need to Know
How stimulant medications affect POTS symptoms, why your body compensates with energy mobilization, and how sunlight plays a role in recovery.
Is IV Saline the Cure for ME/CFS and Dysautonomia?
IV saline helps ME/CFS and dysautonomia patients feel better temporarily. But if the problem is blood flow distribution, saline is a patch, not a fix.
Why Standard Exercise Advice Fails POTS Patients
Exercise advice fails POTS patients because it ignores orthostatic blood flow. Deconditioning isn't the cause: fix cerebral perfusion first.
Why Most Dysautonomia Treatments Don't Work
Why do so many dysautonomia treatments fail? Both conventional and functional medicine miss the one core problem: the brain is the common thread.
The Vagus Nerve Isn’t What You Think
Vagus nerve stimulation for POTS misses the point. The vagus is mostly sensory, paired antagonism is a myth, and the real driver of dysautonomia differs.
Recalibrate, Don't Just Manage
POTS and dysautonomia treatment should recalibrate your nervous system, not just manage symptoms. Targeting the lynchpin unlocks recovery.
POTS & Functional Neurology: Why the Brain Is the Missing Piece
POTS is a brain regulation problem, not a heart rate problem. Mechanism-based neurological evaluation identifies what's actually driving symptoms.
Peripheral Nerve Stimulation for Dysautonomia: Train the Brain Without Crashing
Peripheral nerve stimulation lets dysautonomia patients train the brain without crashing. How PNS restores proprioception and cerebral blood flow.
Sleep, Neuroplasticity, and POTS: Why Your Brain Needs Sleep to Heal
Sleep isn't rest: it's actively restorative. Learn why sleep is the engine of neuroplasticity and recovery in dysautonomia and POTS.
Intensive POTS Treatment Programs
What intensive POTS treatment involves: cerebral blood flow testing, vestibular rehab, and neurological rehabilitation. What to expect in 4 to 7 days.
Can POTS get better?
Can POTS Be Cured? What Recovery Really Looks Like
Is POTS curable? What long-term studies show about recovery, whether POTS goes away on its own, why some people get better faster, and what recovery looks like.
How to Know If Your POTS Is Actually Improving
How to know if your POTS is actually improving using cerebral blood flow data, not just symptoms. A case study shows why BP meds may worsen perfusion.
POTS Recovery After 2 Weeks of Treatment
A 27-year-old with brain fog and POTS after a concussion recovered cerebral blood flow and resolved heart rate instability in two weeks.
Case Study: 2 Years of POTS Resolved in One Month
A patient with two years of POTS recovered in one month through targeted neural rehab: cerebral blood flow testing, tilt progression, and retinal slip.
8-Year POTS Case: From Wheelchair to Walking in 3 Weeks
After 8 years of POTS and daily wheelchair use, a patient left the chair behind in weeks. Dr. Keiser explains the brain-based diagnosis and treatment.
EDS and POTS: Back to Life in Less Than a Month
Case study: A college-aged EDS and POTS patient went from missing school and extreme fatigue to getting back to life in under a month.
POTS Treatment Case Study: From Housebound to Coaching Again
POTS case study: A 21-year-old athlete went from housebound to coaching baseball and taking classes again. Neuropathy findings and CO2-guided rehab.
Case Study: POTS and Digestion Problems Solved Together
A 21-year-old with POTS and gastroparesis improved digestion, heart rate, and sensation through neural rehab, without any GI-specific treatment.
Diagnosed With POTS, But That Wasn't the Problem
A 15-year-old diagnosed with POTS wasn't actually a POTS case. See the real diagnosis, brain-based treatment, and full recovery including return to school.
For how our team evaluates and treats POTS, see the POTS page. Other forms of dysautonomia are on the dysautonomia page.
Get Your POTS & Dysautonomia Roadmap
A free guide to understanding what's actually happening in your brain, and what to do about it.
Get the Free Roadmap