A woman with POTS struggles to enjoy the outdoors due to her environmental triggers.

Barometric Pressure and POTS: How Weather Shifts Trigger Your Symptoms

July 20, 2024

Dealing with Postural Orthostatic Tachycardia Syndrome (POTS) can be difficult, especially when your environment plays a part in triggering your symptoms. Among the environmental factors patients report, the connection between barometric pressure and POTS symptoms is rooted in how your autonomic nervous system regulates blood flow.

Let's take a look at environmental factors that may be exacerbating your POTS symptoms, with a closer look at barometric pressure specifically.

We'll discuss practical strategies to help you manage your symptom flare-ups effectively.

Key Takeaways

Barometric pressure is a real, measurable POTS trigger. Drops in atmospheric pressure reduce external support for blood flow, worsening the orthostatic pooling already present in POTS.

The mechanism is neurological, not just anecdotal. Baroreceptor and chemoreceptor dysfunction in POTS patients means pressure shifts can amplify hyperventilation and reduce blood flow to the brain.

Your POTS subtype matters. Hyperadrenergic, neuropathic, Long COVID-related, hEDS, and MCAS-related POTS each respond differently to environmental triggers, including pressure changes.

Tracking helps you prepare, not just react. Weather apps, symptom journals, and wearables can help you anticipate high-risk pressure windows before symptoms hit.

Environmental awareness works best alongside lifestyle adjustments. Diet, hydration, exercise, sleep, and stress management all play a role in how resilient your system is to weather-related flares.

What Is Barometric Pressure?
The Relationship Between Barometric Pressure and POTS
The Neurological Impact of Barometric Pressure Shifts
How Do POTS Subtypes Affect Which Triggers Hit Hardest?
What Are Environmental Triggers for POTS?
How Weather Changes Affect POTS Symptoms
Tips for Managing Weather-Related Symptoms
Indoor Environmental Factors to Consider
Managing Outdoor Activities with POTS
How to Identify Your Personal Triggers
Practical Tips for Managing Environmental Triggers
The Role of Lifestyle Adjustments in POTS Management
Take Control of Your Environment to Manage POTS Symptoms Better

What Is Barometric Pressure?

Barometric pressure, also called atmospheric pressure, is the force exerted by the air around you. It fluctuates due to weather patterns, altitude changes, and seasonal shifts. High pressure typically brings clear skies, while low pressure is usually associated with storms and unsettled weather.

Your body is constantly adapting to these shifts. For people with neurological or autonomic conditions, including POTS, these changes can become a significant trigger for symptoms.

The Relationship Between Barometric Pressure and POTS

Drops in barometric pressure are associated with reduced atmospheric compression of peripheral blood vessels. For POTS patients, this means less external support for venous return, which can cause blood pooling in the lower body when you stand, rather than returning efficiently toward the heart and brain.

This isn't just a subjective "feeling the weather" phenomenon. POTS involves measurable dysfunction in how the autonomic nervous system regulates blood flow during position changes, and baroreceptors (the body's pressure sensors) play a central role in that regulation.

Research examining chemoreflex sensitivity in POTS patients found that baroreceptor unloading, a change that can accompany shifts in ambient pressure, alters how the body responds to fluctuations in blood oxygen and carbon dioxide levels. This contributes to the hyperventilation many POTS patients experience.¹

The Neurological Impact of Barometric Pressure Shifts

The connection between barometric pressure and POTS traces back to the brain regions responsible for regulating blood flow when you change position. Structures including the brainstem and hypothalamus coordinate the cardiovascular response to standing, largely through baroreceptor signals that detect pressure changes in your blood vessels.

In POTS, this baroreceptor-driven compensation doesn't work the way it should. Research has found that baroreceptor unloading in POTS patients is associated with increased sensitivity to low-oxygen conditions but decreased sensitivity to carbon dioxide changes.⁸ This is a combination that contributes to hyperventilation and reduced blood flow to the brain when upright.

How Do POTS Subtypes Affect Which Triggers Hit Hardest?

Your specific POTS subtype can influence which environmental triggers affect you most:

Hyperadrenergic POTS affects an estimated 30 to 60% of POTS patients and is characterized by elevated standing norepinephrine levels of 600 pg/mL or greater. Predominant symptoms include palpitations, tremors, high blood pressure, anxiety, and tachycardia, and emotionally or physically stressful conditions can be particularly disruptive for this group.⁷
Neuropathic POTS involves a length-dependent autonomic neuropathy, primarily affecting the lower limbs, that reduces the body's ability to constrict blood vessels and prevent venous pooling. Heat and prolonged standing tend to hit hardest, since blood vessels can't tighten quickly enough to compensate.
Hypovolemic POTS affects up to 70% of POTS patients, who show decreased blood volume alongside paradoxically low renin and aldosterone levels, suggesting impaired fluid regulation. This group may be especially sensitive to dehydration and situations that further reduce fluid intake, like illness.
Autoimmune-associated POTS is suggested by overlapping features with autoimmune conditions like lupus and Sjögren's syndrome, including a strong female predominance and post-viral onset. Up to 25% of POTS patients show positive antinuclear antibodies, most commonly linked to Hashimoto thyroiditis.
POTS with Mast Cell Activation Syndrome (MCAS) often adds another layer of complexity, since heat and certain other environmental factors can trigger mast cell degranulation, compounding blood pooling and vasodilation.³

Understanding your subtype, with guidance from your care team, can help you anticipate which environmental factors are most worth tracking closely. If you haven't already, our guide to POTS lifestyle changes can help you build a management plan around your specific pattern of triggers.

What Are Environmental Triggers for POTS?

Environmental triggers for POTS are external factors in your surroundings that can cause or worsen your symptoms.³ These triggers can vary from person to person, but common ones include:

Temperature Changes: Sudden shifts from hot to cold or vice versa can affect blood flow and trigger POTS symptoms.¹
Humidity: High humidity can make it harder for your body to regulate temperature, possibly worsening POTS symptoms.
Altitude: Changes in altitude can affect blood oxygen levels and trigger symptoms.²
Allergens: For some POTS patients, allergens can trigger an immune response that exacerbates symptoms.
Barometric Pressure: Changes in air pressure, often associated with weather shifts, can impact some POTS patients. Fluctuations can have effects on baroreceptor and chemoreceptor function.

Understanding these environmental factors affecting POTS is the first step in managing them. For a broader look at how different triggers compare, our guide on POTS triggers, dos and don'ts covers additional patterns worth watching for.

How Weather Changes Affect POTS Symptoms

Weather can have a significant impact on POTS symptoms. Understanding the relationship between POTS and weather changes can help you better prepare for and manage your condition. Here's how different weather conditions might affect you:

Hot Weather: High temperatures can cause vessels to dilate, lowering blood pressure and making it harder for your body to circulate blood. This can lead to dizziness, fatigue, and fainting.
Cold Weather: Cold can cause blood vessels to constrict, which may increase blood pressure. For some, this can worsen symptoms.⁴
Humid Weather: High humidity can make it harder for your body to cool down, increasing your heart rate and contributing to dehydration.

Now, let's look at tips that can help you enjoy the outdoors even during extreme weather.

Tips for Managing Weather-Related Symptoms

Navigating the challenges of weather-related symptoms can be tricky for people with POTS. By taking steps to prepare yourself, you can more easily manage your symptoms and stay comfortable regardless of weather conditions. Start with these tips:

Stay hydrated by drinking plenty of water with a squeeze of Buoy Rescue Drops.
Wear weather-appropriate clothing, such as lightweight, breathable fabrics in the summer and warm, layered clothing in the winter.
Use fans, air conditioning, or heating to maintain a comfortable indoor environment.
Avoid prolonged exposure to extreme temperatures.

By incorporating these tips into your daily routine, you can better manage the impact of weather on your POTS symptoms. Explore more expert tips for managing POTS symptoms for additional day-to-day strategies.

Indoor Environmental Factors to Consider

Your home environment can also affect your POTS symptoms. Making a few adjustments can create a more comfortable and supportive living space. Here are some things to consider.

Air Quality

Poor indoor air quality can exacerbate POTS symptoms for some patients. To improve air quality in your home:

Use air purifiers.
Keep your space clean.
Consider adding some air-purifying plants to your home.

Lighting

Bright or flickering lights can trigger symptoms in some POTS patients. Use natural light when possible, install dimmer switches, and consider using warm-toned light bulbs.

Noise

For some, excessive noise can increase stress, potentially triggering POTS symptoms. To combat this:

Create quiet zones in your home.
Use noise-canceling headphones when needed.
Try a white noise machine for better sleep.

Temperature

Maintain a consistent, comfortable temperature in your home. Use programmable thermostats and consider zoned heating and cooling systems if possible.⁴

Your home is your sanctuary, and managing your POTS environment is crucial for controlling your symptoms. Paying attention to things like air quality, lighting, noise, and temperature is a simple way to transform your home into a place that supports your health.⁶

A woman sits comfortably next to an air purifier in her living room, symbolizing the importance of maintaining good air quality for managing POTS symptoms.

Managing Outdoor Activities with POTS

Outdoor activities are a wonderful way to enjoy nature and stay moving. However, for those with POTS, they can present unique challenges. With thoughtful planning and a few strategic adjustments, you can still participate in outdoor fun while managing your POTS triggers.

Here are some tips to help you make the most of your time outside while keeping your health in check.

Time Your Activities

Try to avoid being outside during the hottest parts of the day. Plan your outdoor activities for early morning or late evening when temperatures are cooler. This can help prevent overheating and minimize the risk of triggering symptoms.

Stay Hydrated

Hydration is important for managing POTS, especially when you're active outdoors. Always carry water, and consider using Buoy electrolyte solutions to maintain your electrolyte balance at home or on the go.

Dress Appropriately

Wear loose, breathable clothing to stay cool and comfortable. Don't forget sun protection, such as hats, sunglasses, and sunscreen, to shield yourself from the sun's rays.

Plan for Rest

Find shaded areas or indoor locations where you can take breaks when you need to. Resting in a cool, shaded spot can help you recover and prevent symptoms from worsening.

Listen to Your Body

It's important to pay attention to your body's signals. Learn to recognize early signs that you need to rest or cool down, and don't hesitate to take a break when you need it. Remember that taking breaks is a sign of strength, not weakness.

Acclimate Gradually

If you're planning activities at different altitudes, allow time for your body to adjust. Gradual acclimation can help minimize the impact of altitude changes on your POTS symptoms.

When you plan outdoor activities with these strategies in mind, you can enjoy being outside while still effectively managing your POTS symptoms.

How to Identify Your Personal Triggers

Identifying your personal POTS triggers is necessary to proactively mitigate your symptoms. Here are some methods you can use:

Symptom Journal: Keep a daily log of your symptoms, activities, and environmental factors, including barometric pressure readings. Over time, you may notice patterns.
Weather Apps: Use apps that track barometric pressure and other weather conditions along with your symptom tracking.
Smart Home Devices: Some smart home systems can track indoor air quality, temperature, and humidity, which you can then compare with your symptoms.
POTS Tracking Apps: There are several apps designed specifically for tracking POTS symptoms and potential triggers. Find out which apps we recommend for managing POTS in our guide: Resource Lists for POTS Patients: Your Go-To Guide.
Wearable Devices: Some smartwatches and fitness trackers can monitor heart rate and other metrics that might help you identify POTS triggers.

Remember, identifying triggers is a process, and it may take time to recognize clear patterns. Be patient with yourself and stay consistent in your tracking efforts. Your dedication to understanding your body is a powerful step toward better managing your POTS.

A woman keeps track of her symptoms to identify her personal POTS triggers.

Practical Tips for Managing Environmental Triggers

Once you've identified your POTS triggers, here are some practical ways to manage them:

Clothing Choices: Wear layers to adjust to temperature changes easily. Invest in moisture-wicking, breathable fabrics for hot weather. Consider compression garments, which can help with blood flow.
Home Modifications: Install blackout curtains to control light and temperature. This can also contribute to better sleep quality. Use air purifiers and humidifiers/dehumidifiers as needed.
Lifestyle Adjustments: Gradually expose yourself to different environments to build a tolerance to your surroundings. Plan activities around your best times of day. Always be prepared with a "POTS kit" containing water, unrefined sea salt, and any necessary medications.⁶

These practical tips can help you effectively manage your POTS triggers and create a more supportive environment for your health. Remember, managing POTS is a journey, and it's okay to take it one step at a time.

The Role of Lifestyle Adjustments in POTS Management

While managing environmental triggers is important, it's just one piece of the POTS puzzle. Lifestyle adjustments also play a big role in managing POTS symptoms and improving your quality of life. Other lifestyle factors include:

Diet: A balanced diet rich in fluids and salt can help you manage POTS symptoms. Some patients find that small, frequent meals help maintain steady blood sugar levels and reduce fatigue.⁵
Hydration: Staying well-hydrated is crucial for POTS patients. Consider using electrolyte solutions like Buoy Rescue Drops to maintain optimal hydration and electrolyte balance.
Exercise: While challenging, a structured exercise program can improve POTS symptoms over time. Start with recumbent exercises (exercises you can do lying down, such as swimming or rowing), and gradually increase intensity under medical supervision.⁴
Stress Management: Stress can worsen POTS symptoms. Incorporate stress-reduction techniques like meditation, deep breathing, or yoga into your daily routine.
Sleep: Prioritize good sleep hygiene. Consistent, quality sleep can help you manage POTS by giving you the energy you need to go about your day.⁶

Changing your lifestyle can make living with this condition a lot easier. A balanced diet, proper hydration, regular exercise, managing stress, and good sleep hygiene are all essential components of a comprehensive POTS management plan.

Get some more ideas for your daily routine in our guide, Lifestyle Changes to Manage POTS, and explore additional treatment approaches for POTS if you're looking to build out a more complete management plan.

Take Control of Your Environment to Manage POTS Symptoms Better

Understanding and managing your environmental triggers for POTS, especially the often-overlooked role of barometric pressure, can have a big impact on your quality of life. Remember that managing POTS often requires a combination of environmental awareness and lifestyle adjustments.

Everyone's experience with POTS is different, so what works for one person may not work for you. Be patient with yourself as you learn to find your personal triggers.