The Science
The 30-Beat Rule: What the POTS Heart Rate Criteria Actually Say
The 30 bpm (40 in adolescents) sustained standing threshold for POTS, the active-stand and tilt context, and why home readings mislead.
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The Science
What the research says about blood volume, sodium, and POTS.
The Science
How Much Salt Per Day for POTS — and How Clinicians Arrive at the Number
Where the 8-10 g salt target comes from, what it looks like in real meals and water, and the situations in which clinicians dial it back.
The Science
Best Electrolyte Brands for POTS: 5 Products Ranked
A sodium-first ranking of five popular electrolyte products against what POTS patients actually need each day.
The Science
The Best Electrolytes for POTS: What to Look For on the Label
Read the label like a clinician: sodium per serving is the number that matters, then weigh sugar, potassium, and third-party testing.
The Science
POTS vs Anxiety: How to Tell Them Apart
Why autonomic tachycardia and panic feel so similar, the symptom patterns that actually separate them, and how clinicians work through the question.
The Science
Potassium, Magnesium, and POTS: What the Evidence Actually Supports
Separating well-supported electrolyte roles from hopeful internet claims, and why 'more electrolytes' is not automatically better for POTS.
The Science
Why Standing Up Makes Your Heart Race: The Autonomic Reflex
The baroreflex in everyday terms, what goes sideways with it in POTS, and how the body's compensation explains the racing heart and symptoms.
The Science
The Tilt Table Test, Explained in Plain Language
What a tilt table test actually measures, the heart-rate pattern clinicians look for in POTS, and what a result does and does not tell you.
The Science
How Sodium Helps Your Body Hold On to Fluid
The osmosis-and-kidneys story behind 'salt and water' advice for POTS, explained simply — including why the effect has real limits.
The Science
What Is Blood Volume, and Why Does It Matter in POTS?
A plain-language explainer on blood volume, the standing response, the hypovolemic subtype of POTS, and where sodium and fluids fit in.