Medical Disclaimer: The information provided in this post is for educational purposes only and is not intended as medical advice. Always consult with your healthcare provider before making major changes to your diet, salt intake, or exercise routine—especially if you have co-occurring medical, heart, or kidney conditions. If you are looking for personalized medical care, feel free to schedule a free meet and greet call, explore our membership options, or register as a new patient.

In Part 1 and Part 2 of our series, we explored how a gentle morning routine and smart household positioning can save precious energy. Now, let’s look at the foundational physiological tools that support your cardiovascular system throughout the day: hydration, sodium, targeted compression, safe movement, and quick maneuvers for symptom flares.

Implementing these evidence-based lifestyle modifications helps your body build up blood volume and stabilize heart rate shifts from the inside out.

Expanding Blood Volume: Fluids and Sodium

Many people with POTS have lower circulating blood volume (hypovolemia). When there is less fluid in your blood vessels, your heart has to beat significantly faster to push oxygen up to your brain when you stand. Expanding your blood volume is one of the most direct ways to help ease that workload.

Drink Plenty of Fluids

Aim for 2 to 3 liters (about 8 to 12 cups) of fluid per day. Plain water is a great start, but drinking large amounts of water alone without electrolytes can sometimes flush out necessary minerals.

When choosing electrolyte mixes, look for options that contain a meaningful amount of sodium rather than sports drinks that are mostly sugar.

Increase Sodium (With Guidance)

Unless your doctor has told you otherwise, increasing your salt intake helps your body hold onto the fluids you drink, directly expanding your blood volume. Research shows that elevated sodium intake helps reduce standing heart rates and stabilizes autonomic responses.

• Food & Snacks: Adding extra salt to meals or choosing salty snacks throughout the day is a simple starting point.
• Salt Supplements: If reaching your daily target through food alone is tricky, sodium chloride tablets or targeted electrolyte packets can be helpful. Because salt supplements can sometimes cause mild stomach upset, taking them alongside food and a full glass of water makes them easier to digest.

Always confirm your specific daily sodium target with your doctor, as individual needs vary—especially for those with certain POTS subtypes or underlying heart conditions.

Eat Smaller, More Frequent Meals

Have you ever felt unusually exhausted or lightheaded after a heavy lunch? When you eat a large meal, especially one rich in refined carbohydrates, your body shifts a large amount of blood flow to your digestive tract to process the food.

Eating smaller, more frequent meals throughout the day keeps your digestion steady and prevents sudden shifts in blood pressure.

Strategic Compression Garments

Compression garments act like an external pump, physically squeezing blood back up toward your heart and preventing it from pooling in your legs and abdomen when you are upright.

• Length Matters: Knee-high compression socks alone often aren’t enough to prevent blood pooling. Garments that extend to the thigh or waist offer significantly more support.
• Abdominal Binders: A large amount of blood pooling actually happens in the abdomen and pelvic area. Many people find combining an abdominal binder with thigh-high compression garments far more comfortable and effective than full-length tights.
• Timing: Putting your compression garments on early in the day before spending time standing gives you the best results.

Safe Exercise and Reconditioning

Exercise is one of the most effective long-term tools for improving orthostatic tolerance, but starting can feel daunting when you are already dealing with fatigue. The key is choosing exercises that don’t force your body to fight gravity right away.

• Start Horizontal or Seated: Swimming, recumbent cycling, and rowing are fantastic choices. They allow you to build cardiovascular strength and leg muscle tone without standing upright.
• Patience in the Beginning: It is completely normal to feel a bit more tired during the first few weeks of starting a gentle conditioning program. As your leg and core muscles strengthen, they become much better at pumping blood back to your heart, making upright activities easier over time.

Quick Physical Maneuvers for Symptom Flares

If you start feeling dizzy, lightheaded, or unusually unstable while standing, these quick physical counter-maneuvers can help push blood back toward your core immediately:

• Cross your legs and firmly squeeze your thigh and gluteal muscles.
• Squat down to rapidly increase blood flow back to your heart.
• Make tight fists or squeeze a stress ball to activate upper-body muscle pumps.
• Sit or lie down whenever possible. Listening to your body right away prevents a mild flare from turning into severe exhaustion.

The Big Picture

Living well with POTS isn’t about finding a single magic cure. It’s about combining small, evidence-backed daily strategies that support your body as a whole. By staying consistently hydrated, supporting your blood volume, wearing effective compression, and pacing your movement, you can take meaningful steps toward feeling more grounded and in control.

Ready for a Personalized Approach to Your POTS Care?

Managing dysautonomia requires a thoughtful treatment plan tailored specifically to your body’s needs. If you are looking for compassionate, comprehensive medical support, I am here to help.

• Have questions? Schedule a free Meet & Greet to see if my practice is a good fit for you.
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References

1. Garland EM, Gamboa A, Nwazue VC, et al. Effect of High Dietary Sodium Intake in Patients With Postural Tachycardia Syndrome. Journal of the American College of Cardiology. 2021.
2. Williams EL, Raj SR, Schondorf R, et al. Salt Supplementation in the Management of Orthostatic Intolerance: Vasovagal Syncope and Postural Orthostatic Tachycardia Syndrome. Autonomic Neuroscience. 2022.
3. Bryarly M, Phillips LT, Fu Q, Vernino S, Levine BD. Postural Orthostatic Tachycardia Syndrome: JACC Focus Seminar. Journal of the American College of Cardiology. 2019.