What Is POTS?
POTS is a form of dysautonomia that affects how the body regulates heart rate, blood flow, and symptoms when upright.
If you have been told that your symptoms are “just anxiety,” “deconditioning,” or “all in your head,” you are not alone. POTS is a real physiological condition that can cause lightheadedness, rapid heart rate, brain fog, fatigue, palpitations, nausea, exercise intolerance, and other symptoms that often worsen when standing. It is more common than many people realize, and with the right evaluation, it can be identified and managed.
Want to better understand POTS and dysautonomia?
→ Learn what POTS is, common symptoms, and why it occurs
POTS Defined
POTS stands for Postural Orthostatic Tachycardia Syndrome. It is a form of dysautonomia, meaning a disorder of the autonomic nervous system, the part of the nervous system that helps regulate functions like heart rate, blood pressure, sweating, and temperature control. In POTS, symptoms are triggered or worsened by being upright, and the heart rate rises excessively during standing.
POTS is not defined by “feeling tired” alone or by having an occasional fast heart rate. The diagnosis is based on a specific clinical pattern: symptoms that occur when upright, along with an excessive rise in heart rate within the first 10 minutes of standing, while other causes such as orthostatic hypotension, dehydration, or blood loss are excluded. In adults, the heart rate increase is typically 30 beats per minute or more. In adolescents, it is typically 40 beats per minute or more.
Why do people with POTS feel so bad when standing?
When a healthy person stands up, gravity pulls blood downward into the lower body. The autonomic nervous system responds by tightening blood vessels and making small cardiovascular adjustments so enough blood returns to the heart and reaches the brain. In POTS, that response is not working efficiently. Blood tends to pool in the lower body, less blood returns upward effectively, and the body compensates by driving the heart rate higher. That is a big reason why patients may feel lightheaded, shaky, weak, foggy, or exhausted when upright.
Common Symptoms of POTS
Symptoms vary from person to person. Some more common complaints include:
rapid heart rate or palpitations
brain fog or difficulty concentrating
fatigue
exercise intolerance
headache
blurry vision
nausea
shakiness or tremor
fainting or near-fainting in some cases
Some patients look completely fine on the outside while feeling awful on the inside. That mismatch is one reason POTS gets missed so often. The nervous system can be struggling even when the person in front of you “looks healthy.”
Many patients with POTS may experience severe symptom flares, when the autonomic system becomes temporarily unstable.
→ Learn how flares happen and how to manage them
Who gets POTS?
POTS can affect a wide range of individuals across different ages and backgrounds. While it is most commonly seen in adolescents and young adults, particularly women between the ages of 15 and 50, it is important to understand that POTS can impact anyone, including men and children.
Epidemiologically, POTS affects an estimated 1 to 3 million Americans, with approximately 75% to 85% of cases occurring in females. The highest incidence is typically seen in young women, particularly during the teenage years and early adulthood.
Common patterns and risk factors:
POTS often does not appear “out of nowhere.” Many patients can identify a triggering event or period of physiological stress preceding the onset of symptoms. Common triggers include:
Viral illnesses, including post-viral syndromes and Long COVID
Concussion or traumatic brain injury
Pregnancy
Major surgery, including brain or cervical spine surgery
Physical or emotional trauma
Puberty and hormonal shifts
Some individuals also report a worsening of symptoms around their menstrual cycle,
suggesting a hormonal influence on autonomic regulation.
There is also a recognized association between POTS and other medical conditions. Patients may have overlapping or contributing diagnoses such as:
Hypermobile Ehlers–Danlos syndrome (hEDS), a connective tissue disorder affecting collagen and vascular integrity
Myalgic encephalomyelitis / chronic fatigue syndrome (ME/CFS)
Migraine disorders
Irritable bowel syndrome (IBS)
Long COVID and other post-viral syndromes including Lyme’s disease.
A family history of POTS or related autonomic conditions may increase risk, suggesting a possible genetic or inherited component in some cases.
Medications and contributing factors:
Certain medications may trigger or worsen POTS symptoms, including some antidepressants and antipsychotics,
medications used for blood pressure or heart conditions, and diuretics
Patients should always consult a healthcare provider before starting or stopping medications, particularly if symptoms of dysautonomia are present.
POTS is a condition that is often missed!
Despite being relatively common, POTS remains under-recognized and frequently misdiagnosed. Many patients experience a prolonged diagnostic journey, often seeing multiple providers over several years before receiving an accurate diagnosis. It is not uncommon for patients to initially be told their symptoms are due to anxiety or stress alone. In reality, POTS is a physiological disorder of the autonomic nervous system, and proper evaluation is essential.
The post-COVID reality - there has been a significant rise in POTS cases following COVID-19 infection, with research demonstrating a sharp increase in new diagnoses. This has brought greater awareness to the condition, but also a growing population of patients seeking answers for persistent symptoms.
Bottom line: POTS most commonly affects young women, but it is not limited to that group. It can develop after illness, injury, or physiological stress, and often exists alongside other conditions. The variability in presentation is one of the main reasons it is frequently overlooked.
- 1–3 million Americans affected
- 75–85% female
- Most common age: 15–50
- Often triggered by illness or physiological stress
Is POTS the same in every person?
No, and this is where things get interesting fast. POTS is a syndrome, not a single one-size-fits-all disease. Different patients may have different drivers or overlapping patterns. Every person with POTS needs to be considered as an individual. There are recognized subtypes or characteristics that may be present in some patients, including neuropathic, hyperadrenergic, and hypovolemic features. That helps explain why one patient may struggle more with blood pooling, another with adrenaline surges, and another with low blood volume.
That is also why generic internet advice can go sideways. Two people may both carry a POTS diagnosis and still need different strategies, different pacing, and different rehabilitation plans. Same label, different engine under the hood.
How is POTS diagnosed?
POTS is evaluated through a comprehensive clinical process that combines a detailed health history with targeted physical examination and objective testing. The diagnosis is not made from a single data point. It is built by integrating symptom patterns, orthostatic vital signs, and physiologic response to standing. Common assessments include the NASA 10-minute standing test or a head-up tilt table test, both used to document heart rate and symptom changes in an upright position.
A proper evaluation should never stop at “your heart rate goes up.” The clinician must determine whether the full clinical picture fits POTS and whether another condition, such as orthostatic hypotension, dehydration, or blood loss, better explains the findings. This step is critical and often where less experienced evaluations fall short.
Because symptoms overlap with other conditions, POTS is frequently misdiagnosed or overlooked. Many patients are told their symptoms are due to anxiety alone, when in fact they have a measurable autonomic disorder. Mental health is important, but POTS is a physiological condition and requires a structured, evidence-based evaluation.
The diagnostic process is nuanced and experience matters. Clinicians who routinely evaluate POTS are more likely to recognize patterns, avoid common pitfalls, and arrive at an accurate diagnosis. At NeuroSport, we have evaluated and managed over 400 patients with POTS, bringing a depth of clinical experience to this process.
Is POTS Treatable?
There is no single universal cure for POTS, but many patients can experience meaningful improvement in symptoms and quality of life with the right management approach. At NeuroSport, we have developed an innovative, structured treatment model called the Moreau POTS Protocol (MPP™). This protocol uses carefully monitored, progressive exercise to challenge and retrain the autonomic nervous system, with the goal of restoring more normal neurological control of heart rate, vascular tone, and overall physiologic response to standing.
Unlike generic exercise recommendations, the MPP™ is data-driven and individualized, using real-time heart rate monitoring and controlled progression to avoid autonomic overload while building tolerance. While there is no guarantee of recovery, the majority of our patients demonstrate measurable improvement in function, symptom burden, and daily activity tolerance over time.
Effective management still requires a comprehensive approach. Treatment may include targeted exercise rehabilitation, fluid and electrolyte support, and medications when appropriate, all tailored to the patient’s specific presentation. A patient with blood pooling and deconditioning will require a different strategy than someone with hyperadrenergic features, connective tissue involvement, or post-viral dysfunction. The key is identifying the underlying pattern and applying a structured plan, not guessing from across the room.
The Moreau POTS Protocol (MPP™)
The Moreau POTS Protocol is a structured, clinically guided program designed to restore autonomic regulation through targeted exercise and physiologic progression.
Think you may have POTS?
If standing leaves you lightheaded, fatigued, foggy, shaky, or with a racing heart, it may be time for a proper autonomic evaluation. These symptoms are common, but they are not normal, and they are often misunderstood or dismissed.
At NeuroSport, we use a structured, data-driven approach to evaluate POTS and dysautonomia, identify the underlying pattern, and guide next steps. This is not guesswork. It is a focused clinical process designed to give you answers and a clear path forward.
Patients travel to NeuroSport from across the United States and Canada seeking answers for complex cases.