Does Your Heart Race Every Time You Stand Up? It Might Be POTS

Have you ever stood up quickly from a chair or jumped out of bed and felt your head spin? Maybe your heart started pounding like you just ran a sprint. Many people brush this off as a normal quirk of the body. However, if this happens often, it could be a sign of a condition called Postural Orthostatic Tachycardia Syndrome, or POTS for short. There is no need to panic. Let us break down what this condition means in clear, simple terms.

What Is POTS? A Simple Breakdown.

That long medical name can sound intimidating at first glance. Let us break down each word so it makes sense:

• Postural: This relates to your body position, such as whether you are sitting, standing, or lying down.
• Orthostatic: This refers specifically to the act of standing upright.
• Tachycardia: This means a fast heart rate—specifically, when your heart beats over 100 times per minute.
• Syndrome: This simply describes a collection of symptoms that happen together.

Put it all together, and POTS is a condition where your heart rate speeds up in an unusual way right after you stand up. It belongs to a group of conditions known as orthostatic intolerance.

Here is what happens behind the scenes. Your body relies on your autonomic nervous system. Think of this system as an internal manager that keeps your blood pressure and heart rate balanced no matter how you move. When you have POTS, this manager struggles to keep that balance. The communication between your blood vessels squeezing and your heart rate gets out of sync. Because your blood pressure cannot stay steady, various symptoms pop up.

Keep in mind that POTS affects everyone differently. Some people experience mild symptoms that come and go over the years. The good news is that lifestyle shifts, diet adjustments, specific medicines, and exercise can help you control these symptoms and improve your quality of life.

Who Does POTS Affect the Most?

POTS is diagnosed most often in women between the ages of 15 and 50. However, men can develop it as well.

Often, POTS starts appearing after a major physical stressor or illness. Some common triggers include:

• Recovering from a major viral illness: Such as mononucleosis or other severe infections.
• Pregnancy.
• A significant physical trauma: Like a severe head injury.
• Undergoing major surgery.

People with certain autoimmune conditions—where the immune system mistakenly attacks healthy cells—also have a higher chance of developing POTS. Examples include Sjögren's syndrome, lupus, and celiac disease.

How Common Is POTS?

POTS is much more common than many people realize. In the United States alone, estimates suggest that between 1 million and 3 million people live with this condition. Many others around the globe likely have it but remain undiagnosed.

How Does POTS Affect Your Body?

Imagine you are sitting down and you suddenly stand up. Gravity pulls about 10% to 15% of your blood down into your belly, legs, and arms. This means slightly less blood flows to your brain for a brief moment. That is why you might feel a tiny wave of lightheadedness. If you do not have POTS, your leg muscles quickly help pump that blood back up to your heart, and your nervous system acts fast.

To make up for the drop in blood returning to the heart, your nervous system releases hormones called epinephrine and norepinephrine. These hormones make your heart beat faster and stronger. They also cause your blood vessels to tighten up. All of this teamwork ensures your brain and heart continue to get a steady supply of blood.

When someone has POTS and stands up, too much blood pools in the blood vessels below the heart. The body tries to fix this by releasing even more norepinephrine. Yet, for reasons doctors are still studying, the blood vessels do not respond properly to these hormones. Because the blood vessels do not tighten enough, the heart has to beat much faster to compensate.

This imbalance in your circulation is what triggers dizziness, fainting spells, and overwhelming tiredness.

Is POTS a Serious Condition?

POTS is generally not life-threatening. However, it can create major roadblocks in your everyday routine and work. The encouraging news is that a variety of management tools can help you keep symptoms under control.

What Are the Symptoms of POTS?

POTS can appear suddenly or develop gradually over time. Symptoms usually strike right after you stand up or a few minutes later. Lying down often helps them fade away.

Because POTS affects the body in many ways, symptoms vary greatly from person to person. Common signs include:

• Dizziness or lightheadedness: Especially when standing up, staying in one spot too long, or walking long distances.
• Fainting or feeling like you might faint.
• Trouble concentrating or remembering things: Often called "brain fog".
• Heart palpitations: Feeling your heart race, pound, or skip beats.
• Exhaustion and deep fatigue.
• Feeling nervous or anxious for no clear reason.
• Shakiness and sweating more than usual.
• Shortness of breath.
• Chest pain.
• Headaches.
• Nausea or feeling sick to your stomach.
• Bloating.
• A pale face or purple discoloration in your hands and feet when they hang lower than your heart.
• Sleep problems: Triggered by a racing heart, chest discomfort, or night sweats.

Certain situations can make these symptoms much worse. Watch out for triggers like:

• Warm environments: Taking a hot bath or shower, or spending time outside on a hot day.
• Standing still for long periods: Such as waiting in a grocery line.
• Doing heavy exercise.
• Being sick with a cold or infection.
• Your menstrual period.

What Causes POTS?

Researchers do not yet know the exact root cause of POTS. They believe multiple factors play a role, which is why doctors categorize POTS into a few sub-types:

• Neuropathic POTS: This happens due to a loss of nerve supply to the small blood vessels, especially in the legs and core, which causes blood pooling.
• Hyperadrenergic POTS: This occurs when your sympathetic nervous system—your fight-or-flight response—becomes overactive.
• Hypovolemic POTS: This happens when your body has a reduced volume of circulating blood.

Growing evidence also points to autoimmune factors, suggesting that the body's immune system may sometimes attack healthy tissues by mistake.

How Is POTS Diagnosed?

Getting a POTS diagnosis can take time because symptoms overlap with many other health issues. You might spend months or even years searching for answers before finding a doctor who identifies POTS.

Your doctor will start by asking detailed questions about your symptoms, past health history, and current medicines. They will also perform a physical exam.

The main test used to confirm POTS is called the tilt table test. During this test, you lie flat on a specialized table while doctors strap you in safely. The table then tilts upright to measure how your heart rate and blood pressure react to the change in posture.

Doctors may also order other tests to rule out other medical conditions or confirm the diagnosis. These can include:

• Blood and urine tests: To check for nutritional issues, thyroid problems, or other causes of racing heart rates.
• QSART test: Measures the autonomic nerves that control sweating.
• Autonomic breathing tests: Evaluates how your heart rate and blood pressure respond to deep breathing exercises.
• Skin nerve biopsy: Examines tiny nerve fibers in the skin.

What Are the Treatments for POTS?

Currently, there is no single cure that eliminates POTS completely. Instead, doctors focus on managing your specific symptoms using a tailored plan.

Your treatment plan will likely include:

• Targeted physical activity and exercise.
• Specific dietary and nutrition adjustments.

Wearing medical compression stockings can also help push blood upward from your legs and reduce symptoms.

Exercise and Physical Activity.

Staying active is a vital part of managing POTS. Even though you have a healthy heart, your doctor may suggest a structured cardiac rehabilitation program. Data shows that guided exercise programs offer some of the best results for people with POTS.

Research highlights that reclined aerobic exercises work best when starting out. Good options include swimming, rowing, or riding a recumbent stationary bike. Strengthening your core and leg muscles is also extremely helpful.

Keep these practical tips in mind when starting an exercise routine:

• Try isometric exercises: These exercises involve tightening your muscles without moving your joints. They squeeze your blood vessels and push blood back toward your heart. You can easily do them while sitting in a chair or lying in bed. Doing these before you get out of bed in the morning prepares your body for sitting or standing.
• Change your posture slowly: Move from lying down to sitting on the edge of your bed. Stay there for a few minutes to let your body adjust. When you stand up, wait a moment before walking. If you feel dizzy, pause and sit back down until it passes. Slow movements make a big difference.
• Start a gentle walking plan: See how many steps you can take without bringing on symptoms. Begin with short walks once a day, then gradually increase your time and distance. Fitness trackers can help you count your steps easily. Increase your step goals slowly week by week.
• Practice basic yoga: Gentle yoga combined with focused breathing can help calm your nervous system.

Diet and Nutrition.

Dietary changes play a major role in keeping POTS symptoms manageable.

If you have hypovolemic POTS (low blood volume), your doctor will likely advise you to increase your intake of fluids and salt to boost your blood volume.

Eating large meals can make POTS symptoms worse. When you eat a heavy meal, your body sends a large amount of blood to your digestive tract. To prevent this, try eating smaller meals more often throughout the day instead of two or three large ones.

A registered dietitian or nutritionist can guide you, especially if you also manage food sensitivities like celiac disease.

Here are some simple dietary guidelines:

• Aim for 3,000 to 10,000 milligrams of salt per day, as recommended by your care team.
• Drink 2 to 2.5 liters of fluids daily, with water being your best choice.
• Choose smaller, frequent meals rather than large feasts.
• Eat foods rich in fiber and complex carbohydrates to prevent sudden spikes and drops in blood sugar.
• Maintain a balanced diet containing lean proteins, vegetables, dairy, and fruits.
• Select healthy salty snacks like broths, olives, pickles, and nuts rather than relying on processed crackers.

medicines.

The U.S. Food and Drug Administration (FDA) has not approved a specific medicine designed exclusively for POTS. However, doctors often prescribe certain drugs "off-label" to help control troublesome symptoms.

Common medicine options include:

• Fludrocortisone: Helps your body retain salt and increase blood volume.
• Pyridostigmine: Can help reduce rapid heart rates.
• Midodrine: Helps narrow blood vessels to improve blood flow.
• Beta-blockers: Can lower standing heart rates.

Every medicine carries potential side effects. Your doctor will discuss these options with you to find what fits your body best.

What Else Can Help Me Manage POTS?

Along with exercise and diet changes, tracking your biometrics and improving your sleep habits can make daily life much smoother.

Tracking Your Pulse and Blood Pressure.

Writing down your blood pressure and heart rate numbers gives you and your doctor valuable insights.

Check your blood pressure and pulse at the same time every day—such as in the morning and after dinner. This is especially helpful during your first few months after diagnosis. You should also check them whenever you feel unwell. You can easily purchase a reliable digital blood pressure monitor at most pharmacies.

Managing Sleep with POTS.

POTS can interfere with your sleep schedule. Because good rest is vital for overall health, prioritizing sleep is essential:

• Elevate the head of your bed: Raise the head of your bed by 6 to 10 inches. The entire bed frame should sit at an angle rather than just propping up your head with pillows. This helps increase your body's fluid volume overnight so you feel better when you wake up.
• Keep your bedroom cool: A comfortable room temperature helps promote deep sleep.
• Stick to a consistent sleep schedule: Go to bed and wake up at the same time every single day.
• Limit daytime napping: Napping too much during the day can ruin your night sleep.
• Unwind before bed: Turn off phones, tablets, and TVs well before sleep to protect your sleep quality.

Can You Prevent POTS?

Unfortunately, there is no known way to prevent POTS from developing. However, you can learn your personal triggers and take steps to avoid flare-ups.

Helpful prevention tips include:

• Maintain a stable temperature: Heat can make POTS symptoms flare up quickly. Use air conditioning, cooling vests, handheld fans, and dress in layers. When bathing, use lukewarm water instead of very hot water, and consider using a shower chair.
• Avoid standing still for too long: If you must stand, shift your weight between your feet and flex your leg muscles regularly.
• Avoid alcohol: Alcohol dehydrates the body, which can worsen symptoms.

What Is the Long-Term Outlook for POTS?

The outlook for people with POTS is generally positive, even though living with chronic symptoms has its challenges. For about 80% of people, symptoms improve greatly over time, though some mild residual symptoms may linger.

The primary physical risk associated with POTS is injury from sudden fainting falls. Rest assured, POTS does not shorten your overall lifespan.

How to Take Care of Yourself.

Navigating life with POTS can feel overwhelming some days. Here are ways to support your physical and emotional well-being:

• Talk openly with loved ones: Share your diagnosis and experiences with family and friends so they understand what you are going through.
• Prioritize stress relief: Good sleep and stress management help keep your nervous system balanced.
• Join support groups: Connecting with online or local POTS support communities helps reduce feelings of isolation.
• Consider counseling: Working with a psychotherapist can help you cope with the emotional hurdles of managing a long-term condition.
• Take mindful breaks: Practice meditation or take quiet time-outs during your day to rest.

When to See a Doctor.

If you experience unusual symptoms like frequent dizziness, lightheadedness, or a racing heart when standing up, make an appointment with your doctor.

If you already have a POTS diagnosis, try to consult a specialist familiar with autonomic disorders to receive the most personalized care possible.

Take-Home Message.

• If standing up makes you dizzy or causes your heart to race, do not ignore it—talk to a doctor.
• POTS is not life-threatening, though it can disrupt daily activities.
• Lifestyle shifts, targeted exercises, hydration, and medical guidance can help you regain control.
• Moving slowly, increasing salt and water intake, and eating smaller meals make a real difference.
• Support groups and counseling can help you stay positive.
• Never lose hope. With proper management, you can thrive.

References & Further Reading.

1. Cleveland Clinic. (2026). Postural Orthostatic Tachycardia Syndrome (POTS): Overview & Management.
2. Mayo Clinic. (2025/2026). Postural Tachycardia Syndrome (POTS): Symptoms and Causes.
3. Raj, S. R., et al. (2021/2026). Postural Orthostatic Tachycardia Syndrome: State of the Art Review. Journal of Clinical Medicine / PMC.
4. Dysautonomia International. Diagnostic Criteria and Clinical Guidelines for POTS.
5. National Institutes of Health (NIH). Postural Orthostatic Tachycardia Syndrome Overview.