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Oct 15, 2026 POTS and Insomnia: Why You're Wired but Tired and Can't Sleep POTS insomnia is the exhausting mismatch between a body that is depleted and a nervous system that will not switch off. Here is why it happens, what the overnight numbers show, and the practical steps that calm the night. POTS Oct 14, 2026 Blurry Vision and Visual Symptoms in POTS and Dysautonomia: Why Your Sight Changes When You Stand Blurry vision, graying out, tunnel vision, light sensitivity and dry eyes are common in POTS and dysautonomia, and most of the time they come from your eyes briefly getting less blood when you are upright, not from an eye disease. Here is why vision fades first when you stand, what the different visual symptoms mean, and what to track. POTS Oct 13, 2026 Antihistamines for MCAS: H1 and H2 Blockers in POTS and Long COVID H1 and H2 antihistamines are the usual first step for mast cell symptoms in MCAS, POTS and long COVID. Here is what they actually do, why they are often used in pairs, how first-generation ones can quietly raise your heart rate and blunt your HRV, and how to run a careful trial with your clinician. Long COVID Oct 12, 2026 Nausea in POTS and Dysautonomia: Why You Feel Sick and What Helps Nausea is one of the most common and most dismissed symptoms of POTS and dysautonomia. Here is the autonomic physiology behind it, how to tell the different triggers apart, the red flags worth knowing, and the practical steps that settle a queasy stomach. POTS Oct 11, 2026 Cold Hands and Feet in POTS and Long COVID: Why It Happens and What Helps Cold, pale hands and feet are one of the most common and least talked about parts of dysautonomia. Here is the physiology behind it, how to tell plain cold extremities from Raynaud's and acrocyanosis, and the practical steps that actually warm you up. POTS Oct 9, 2026 Electrolyte Drinks for POTS: How to Choose One (and a DIY Recipe) Most sports drinks are far too dilute to help POTS. The number that actually matters is sodium per serving, not the color of the bottle. Here is how to read a label, a comparison of common options, and a cheap recipe you can make at home. Food Oct 7, 2026 Non-Dipping Blood Pressure: Why Yours Should Fall at Night Healthy blood pressure follows a daily rhythm and drops 10 to 20 percent while you sleep. When that night-time fall is missing, clinicians call it 'non-dipping,' and it is one of the quieter autonomic signals worth understanding, especially in dysautonomia. Basics Oct 3, 2026 Intermittent Fasting and POTS: What It Does to HRV, and Whether to Try It Intermittent fasting is everywhere, but POTS and dysautonomia change the math. Here is the honest physiology: how fasting moves your HRV, why skipping breakfast can backfire on blood volume and blood sugar, and a gentler way to try it if you still want to. Food Oct 1, 2026 Why Hot Showers Make POTS Worse: Heat, Blood Pooling, and How to Shower Safely A hot shower stacks three POTS triggers at once: heat that dilates your blood vessels, standing still in the stream, and fluid lost to sweat. Here is why showering leaves so many people dizzy, and a practical, non-scary way to make it safer. POTS Sep 30, 2026 Head-Up Tilt Sleeping for POTS: Does Raising the Head of Your Bed Help? Sleeping with the head of your bed raised is a simple, low-cost habit that can protect overnight blood volume and soften morning orthostatic symptoms. Here is how head-up tilt sleeping works, who it helps most, and how high to raise it. POTS Sep 28, 2026 Dysautonomia Awareness Month 2026: Ten Mornings, One Giveaway October is Dysautonomia Awareness Month, and this year we are marking it with a giveaway built around the one thing that helps most: getting to know your own nervous system. From October 1, every day you take an HRV reading earns an entry, up to 10. Win an Apple Watch Series 12 or a Polar H10. The app Sep 26, 2026 Pulse Oximeter Readings in Long COVID and POTS: What SpO2 Can and Cannot Tell You A fingertip pulse oximeter measures how much oxygen your blood is carrying, and in long COVID and POTS that number is usually normal even on the days you feel most breathless. Here is how to read SpO2 accurately, why a normal reading does not mean nothing is wrong, and what to watch for. Long COVID Sep 25, 2026 Chest Pain and Tightness in POTS and Dysautonomia: What It Usually Is Chest pain and tightness are common and frightening in POTS, long COVID and dysautonomia, and in a young person with a structurally normal heart they are usually not cardiac. Here is what actually produces the sensation, how to sort the type you feel, and the red flags that mean call for help now. POTS Sep 24, 2026 Dizziness and Lightheadedness in POTS and Dysautonomia: Why It Happens and What to Track Dizziness and lightheadedness are the most common symptoms of POTS and dysautonomia, and most of the time they come from the brain briefly getting less blood when you are upright, not from your inner ear. Here is how to tell the types apart, why standing sets it off, and what to track. POTS Sep 23, 2026 Internal Tremors and Vibrations in Long COVID and Dysautonomia Internal tremors are a shaking or buzzing you feel inside your body with little or nothing to see on the outside. They are common in long COVID, POTS, and dysautonomia, and there is a clear autonomic reason. Here is what drives them and how to read the pattern calmly. Long COVID Sep 22, 2026 Sweating and Dysautonomia: Too Much, Too Little, and Night Sweats Sweating is run entirely by your autonomic nervous system, so when that system is dysregulated your sweating often is too, in either direction. Here is why POTS, long COVID, and other forms of dysautonomia can cause drenching sweats, night sweats, or the opposite, and how to read the pattern calmly. POTS Sep 21, 2026 Nicotine and HRV: How Smoking, Vaping, and Pouches Affect Heart Rate Variability Nicotine is a stimulant that reliably raises heart rate and lowers HRV by shifting your autonomic balance toward fight-or-flight. Here is the physiology, how cigarettes, vapes, pouches, and patches differ, what it means for POTS, and what happens to your numbers when you cut down. HRV Sep 20, 2026 Thyroid and HRV: Why Your Thyroid Can Mimic POTS and Lower Your Numbers An overactive or underactive thyroid can raise your heart rate, drop your HRV, and feel a lot like POTS. Here is how thyroid hormone shapes your autonomic numbers, why it is worth ruling out, and how to track the difference at home. POTS Sep 16, 2026 HRV Standing vs Lying Down: Why Posture Changes Your Reading Your HRV falls when you stand up, and that is normal physiology, not a bad sign. Here is why posture moves heart rate variability so much, what it means in POTS, and why measuring the same position every time is the single biggest thing you can do for a readable trend. HRV Sep 15, 2026 POTS in Teenagers: What Adolescent POTS Looks Like and Why It Often Gets Better POTS most often begins in the teen years, frequently after a virus, a growth spurt, or a concussion. The diagnostic threshold is higher for adolescents, and the outlook is more hopeful than for adults. Here is how teenage POTS behaves and how to track it at home. POTS Sep 14, 2026 POTS Flare-Ups: What Triggers Them and How to Recover A POTS flare is a temporary spell of amplified symptoms above your usual baseline, set off by things like heat, illness, hormones or overexertion. Here is how to recognize a flare, what tends to trigger one, and a calm, step-by-step way to recover. POTS Sep 13, 2026 SSRIs, SNRIs and HRV: How Antidepressants Change Your Heart Rate Variability Starting an SSRI or SNRI can shift your HRV numbers, but the picture is messier than 'antidepressants lower HRV.' Depression and anxiety themselves lower HRV, some drugs nudge it further down, SNRIs can raise your heart rate, and treating the underlying condition may lift it over months. Here is how to read RMSSD, SDNN and your stand test honestly once one of these medications is in the picture. HRV Sep 12, 2026 POTS and Pregnancy: What to Expect Trimester by Trimester Most people with POTS have healthy pregnancies, but symptoms shift as blood volume, hormones and heart rate change. Here is what tends to happen in each trimester, and how to read your own numbers without panic. POTS Sep 10, 2026 Flying with POTS: How to Survive Air Travel with Dysautonomia Air travel stacks nearly every POTS trigger into one day: dehydration, low cabin oxygen, hours of sitting, missed sleep, and long stretches on your feet in the terminal. Here is what a flight actually does to your autonomic nervous system, and a practical plan for before, during, and after so you land closer to your baseline instead of flat on it. POTS Sep 9, 2026 Clonidine and Guanfacine for Hyperadrenergic POTS: Turning Down the Sympathetic Signal Clonidine and guanfacine work from the opposite end of a beta blocker: instead of blocking adrenaline at the heart, they quiet the sympathetic signal at its source in the brainstem. Here is how these central alpha-2 agonists are used in hyperadrenergic POTS, how the two differ, and what to track once one is in the picture. POTS Sep 8, 2026 Menopause, Perimenopause, and HRV: Hormones, Palpitations, and Dysautonomia As estrogen swings and falls through perimenopause and menopause, HRV tends to drop, resting heart rate ticks up, and palpitations and orthostatic symptoms often flare. Here is what actually changes, and how to read your numbers through the transition without spiraling. HRV Sep 7, 2026 Pyridostigmine (Mestinon) for POTS: The Drug That Raises Vagal Tone to Slow a Standing Heart Rate Pyridostigmine lowers the standing tachycardia of POTS from an unusual direction: it lets acetylcholine build up, which strengthens vagal tone and eases ganglionic transmission, so heart rate comes down without lowering blood pressure. Here is how it works, what the evidence shows, the cholinergic side effects, and what to actually track. POTS Sep 6, 2026 Gastroparesis and POTS: Nausea, Bloating, and Slow Digestion in Dysautonomia Feeling full after a few bites, nauseous, and bloated for hours is common in POTS and dysautonomia, and delayed gastric emptying is often the reason. Here is why the same nervous system that controls your heart rate also controls your stomach, how to tell gastroparesis apart from post-meal blood pooling and blood-sugar swings, and the eating patterns that help. POTS Sep 5, 2026 Autonomic Function Tests: What to Expect at Autonomic Testing Referred for autonomic testing and not sure what happens? Here is a plain walk through the standard autonomic reflex screen: the deep breathing test, the Valsalva maneuver, the tilt table, and the QSART sweat test, plus how each result is read. POTS Sep 4, 2026 Blood Sugar Swings and POTS: Reactive Hypoglycemia, Explained If you feel shaky, sweaty, and your heart races a couple of hours after a carb-heavy meal, a blood-sugar swing may be feeding your POTS symptoms. Here is the physiology of reactive hypoglycemia, why it overlaps so cleanly with adrenaline surges, and how to flatten the curve. Food Sep 3, 2026 Fludrocortisone for POTS: The Blood-Volume Drug That Makes Salt and Water Stick Most POTS medications work on the heart or the blood vessels. Fludrocortisone works on the kidneys. It tells them to hold on to sodium and water so your blood volume expands, which is exactly what a low-volume, pooling body is short of when standing. Here is how it works, why salt intake is part of the prescription, the potassium rule that comes with it, and what to track. POTS Sep 2, 2026 Midodrine for POTS: The Vasoconstrictor That Tightens Blood Vessels Instead of Slowing the Heart Most POTS medications work on the heart. Midodrine works on the blood vessels. It tightens them so less blood pools in your legs when you stand, which lifts standing blood pressure and can shrink the reflex heart-rate jump. Here is how it works, what to know about supine hypertension and dose timing, and exactly what to track. POTS Sep 1, 2026 Inappropriate Sinus Tachycardia vs POTS: How to Tell Them Apart Both make your heart race, but the tell is timing. Inappropriate sinus tachycardia runs fast even at rest; POTS is normal lying down and surges when you stand. Here is how to read the difference at home without spiraling. POTS Aug 31, 2026 Why Are All My Test Results Normal When I Feel This Sick? Your ECG, bloodwork and echo came back normal, but you can barely stand up without your heart pounding. Here is why 'normal' and 'this sick' can both be true, what standard tests miss in dysautonomia, and the exact evidence to bring back to your clinician. POTS Aug 28, 2026 The Water Bolus for POTS: How Fast Drinking Water Raises Blood Pressure Drinking about 500 ml of plain water quickly can raise blood pressure and steady standing heart rate within minutes. Here is the physiology behind the water bolus, how to use it, and how to test whether it works for you. POTS Aug 27, 2026 Coat Hanger Pain: Why Your Neck and Shoulders Ache When You Stand Coat hanger pain is the aching band across the back of the neck and shoulders that builds the longer you stay upright and eases when you lie down. Here is why it happens in POTS and orthostatic intolerance, how to tell it apart from ordinary neck tension, and how to track it. POTS Aug 26, 2026 Ivabradine for POTS: How It Lowers Heart Rate Without Touching Blood Pressure Ivabradine slows the heart's own pacemaker directly, so it can bring down a racing standing heart rate in POTS without lowering blood pressure or blunting how hard the heart squeezes. Here is how it works, what the evidence shows, and what to actually track once it is in the picture. POTS Aug 25, 2026 Air Hunger in Long COVID and POTS: Why You Feel Short of Breath Air hunger, the feeling that you can't get a full, satisfying breath, is one of the most frightening symptoms in long COVID and POTS. It usually isn't your lungs failing. Here is what actually drives it, why your oxygen reads normal, and how to track it without spiraling. Long COVID Aug 24, 2026 Tilt Table Test: What to Expect and How It Diagnoses POTS and Syncope A tilt table test tips you upright on a motorized table while your heart rate and blood pressure are watched continuously. Here is what actually happens during the test, how it is read, and how it differs from the stand test you can run at home. POTS Aug 23, 2026 Heart Palpitations and Ectopic Beats in POTS: What They Mean and How They Affect HRV Palpitations, that pounding, fluttering or skipped-beat feeling, are one of the most common and most frightening symptoms in POTS and long COVID. Here is what the different sensations actually mean, why most are benign, the red flags that are not, and how ectopic beats quietly distort your HRV readings. POTS Aug 22, 2026 Small Fiber Neuropathy in POTS and Long COVID: Symptoms, Testing, and What to Track Small fiber neuropathy damages the tiny nerves that carry pain, temperature and autonomic signals, and it shows up surprisingly often in POTS and long COVID. Here is what it feels like, how it is tested, and the at-home metrics that mirror the autonomic side of it. POTS Aug 21, 2026 Vasovagal Syncope: Why You Faint and How to Stop It Vasovagal syncope is the most common reason people faint: a reflex that briefly drops your blood pressure and heart rate so your brain loses blood flow for a few seconds. Here is what the reflex is doing, how to read the warning signs, and the counter-pressure moves that can stop a faint before it lands. Basics Aug 18, 2026 Orthostatic Hypotension vs POTS: How to Tell Them Apart Both make you dizzy when you stand up, but they are opposite problems on the monitor. Orthostatic hypotension is a blood-pressure drop; POTS is a heart-rate surge with the blood pressure holding. Here is how to read the difference at home without spiraling. POTS Aug 17, 2026 Cold Exposure and HRV: Does Cold Water Really Boost Your Vagus Nerve? Cold water can calm your heart through the vagus nerve, but only in a specific way. Cold on the face triggers a genuine vagal slowdown; a full ice plunge is a sympathetic stressor first. Here is what actually happens to your HRV, and how to try it safely with POTS. HRV Aug 16, 2026 Low Blood Volume in POTS: How Hypovolemia Drives the Racing Heart Many people with POTS run on a genuinely smaller blood volume than average. Here is the physiology behind hypovolemic POTS, why it drives the standing tachycardia and low HRV, and the at-home fingerprints you can actually track. POTS Aug 15, 2026 Hypermobility, hEDS and POTS: Why Bendy Joints and a Racing Heart Travel Together Joint hypermobility, hypermobile Ehlers-Danlos syndrome (hEDS) and POTS overlap far more often than chance. Here is the connective-tissue link, what the Beighton score does and does not tell you, and how tracking changes the management. POTS Aug 13, 2026 Dehydration and HRV: Why Being Under-Hydrated Lowers Heart Rate Variability Under-hydration is one of the quietest reasons your HRV reads low. Here is the physiology behind it, how much it moves the number, why it hits harder in POTS, and how to tell a hydration dip apart from a real trend. HRV Aug 12, 2026 Weather and POTS: How Barometric Pressure, Humidity, and Cold Shift Your Symptoms Many people with POTS and dysautonomia swear their symptoms track the weather, and the physiology backs up a lot of it. Here is what barometric pressure, humidity, cold snaps, and passing fronts actually do to an autonomic nervous system, and how to tell whether the sky is really your trigger. POTS Aug 11, 2026 Heart Rate Zones Explained: Z1 to Z5, and How to Read Them With Dysautonomia Heart rate zones split effort into five bands off your estimated maximum heart rate. Here is what each zone actually does physiologically, why the age formula is only an estimate, and how to read time-in-zone when you have POTS, long COVID or post-exertional malaise. Recovery Aug 10, 2026 Baroreflex Sensitivity: The Reflex That Keeps You Upright The baroreflex is the fast feedback loop that steadies your blood pressure every time you stand, and its sensitivity is one of the clearest measures of how well your autonomic system responds. Here is what baroreflex sensitivity means, why it runs low in POTS and long COVID, and how your HRV and stand test give you a home-usable proxy. Basics Aug 9, 2026 POTS vs Deconditioning: How to Tell the Difference "You're just deconditioned" is one of the most common things people with POTS hear. Both can race your heart when you stand, but they behave differently over time. Here is how to read the difference at home without talking yourself out of care. POTS Aug 7, 2026 From Daily Crashes to Living Again: What I Tracked, What I Changed, and What the Data Showed A patient-founder's honest account of four years with long COVID and dysautonomia: the daily crashes and labile blood pressure, why I started measuring, the routine I built piece by piece, and what my own HRV and blood pressure data actually showed. Long COVID Aug 6, 2026 Iron Deficiency and POTS: Why Ferritin Matters When Your Labs Look Normal Low iron stores are common in POTS and can quietly amplify tachycardia, fatigue and lightheadedness, often while a standard blood count still reads normal. Here is how ferritin fits in, why the lab range can miss it, and what to track at home. POTS Aug 5, 2026 Compression Garments for POTS: What Actually Works and How to Wear Them Compression is one of the few non-drug tools with real evidence behind it for POTS. The catch: where you compress matters far more than most people realize. Here is what the research shows and how to use it. POTS Aug 2, 2026 Is It POTS or Anxiety? How to Tell Them Apart POTS and anxiety share almost every symptom: racing heart, dizziness, shortness of breath, that wired feeling. The one thing that reliably separates them is what your heart does when you stand up. Here is how to read the difference without spiraling. POTS Jul 31, 2026 Beta Blockers and HRV: Why Your Heart Rate Variability Changes on Propranolol or Metoprolol Starting a beta blocker usually lowers your resting heart rate and pushes your HRV numbers up, but part of that rise is the slower heart rate itself, not healed vagal tone. Here is how to read RMSSD, SDNN and your stand test honestly once a beta blocker is in the picture. HRV Jul 29, 2026 Blood Pooling in POTS: Why Blood Collects in Your Legs When You Stand (and What Helps) When you stand, gravity pulls a large volume of blood down into your legs and belly. In POTS that pooling is exaggerated and slow to correct, so your heart races to compensate. Here is the physiology in plain terms, why your feet can turn dusky, and the practical moves that push blood back where it belongs. POTS Jul 28, 2026 Why Are POTS Symptoms Worse in the Morning? The Overnight Physiology and a Gentler Start If your POTS symptoms are at their worst in the first hour after waking, there are real, well-understood reasons. Here is what happens to your blood volume, hormones and heart rate overnight, and a calmer, step-by-step way to get out of bed. POTS Jul 25, 2026 Why POTS Feels Worse After Eating: Postprandial Hypotension, Explained If your heart races, your head swims, or you crash for an hour after a meal, that is not in your head. Digestion pulls a large share of your blood into the gut, and a struggling autonomic system cannot compensate. Here is the physiology and how to eat around it. POTS Jul 23, 2026 POTS Subtypes Explained: Hyperadrenergic, Neuropathic, and Hypovolemic POTS is usually grouped into three overlapping patterns: neuropathic, hyperadrenergic, and hypovolemic. Here is what each one means, how they differ, and what your at-home stand-test numbers can hint about which pattern is driving your symptoms. POTS Jul 22, 2026 Adrenaline Dumps in POTS: Why Your Heart Races (and Why It Usually Isn't a Panic Attack) That sudden racing heart, tremor and wave of dread, often at 3am or after standing, has a name patients use: an adrenaline dump. Here is the physiology behind catecholamine surges in POTS, how to tell them apart from panic attacks, and how to track and settle them. POTS Jul 21, 2026 Heat Intolerance and POTS: Why Hot Weather Wrecks Your Numbers (and How to Track It) Heat is one of the most reliable triggers in POTS and dysautonomia. Here is the physiology behind why hot weather raises your heart rate, drops your HRV, and worsens standing symptoms, plus the practical cooling and tracking moves that actually help. POTS Jul 20, 2026 Alcohol and HRV: Why a Few Drinks Lower Your Overnight Numbers (and Flare POTS) Unlike caffeine, alcohol reliably lowers your overnight HRV, and the effect scales with how much you drink and how late. Here is the physiology, honestly, plus why it hits POTS and dysautonomia harder, and how to test your own response. HRV Jul 19, 2026 The Menstrual Cycle and HRV: Why Your Numbers Dip (and POTS Flares) Before Your Period HRV tends to run higher in the follicular half of your cycle and lower in the luteal half, while resting heart rate does the opposite. Knowing where you are in your cycle keeps a normal luteal dip from reading like a crash, and explains why POTS symptoms so often flare before and during your period. HRV Jul 18, 2026 Caffeine and POTS: How Coffee Affects Your Heart Rate, HRV, and Standing Symptoms Does coffee make POTS worse? Caffeine is a stimulant that raises heart rate and sympathetic drive, but it can also nudge blood pressure up and its effect on HRV is genuinely individual. Here is the physiology, honestly, plus how to test your own response. POTS Jul 7, 2026 Recovery from Post-Viral Dysautonomia: Turning Data Into Decisions Recovery from POTS and post-viral dysautonomia is slow, noisy and non-linear, which is exactly why it's so easy to lose hope in the day-to-day. Here's how to pace, read your trends, and turn months of scattered data into decisions that actually bend the curve. Recovery Jul 5, 2026 POTS, Long COVID & MCAS: Why They Travel Together POTS, long COVID, ME/CFS and MCAS overlap so much that many people are told they have several at once. Here's what actually connects them, how they differ, and which parts of each you can track at home. Long COVID Jul 2, 2026 The Autonomic Nervous System & Dysautonomia: A Complete Guide Your autonomic nervous system runs everything you never think about: heart rate, blood pressure, digestion, temperature. When it stops regulating properly, that's dysautonomia. Here is how it works, what goes wrong, and why it's measurable. Basics Jun 30, 2026 The Best Wearables & Home Tools for Tracking POTS A practical guide to the affordable devices that capture POTS at home (chest straps, rings, watches, blood-pressure cuffs and pulse oximeters), plus the one test that needs no gadget at all. POTS Jun 27, 2026 Is It Long COVID or POTS? How to Tell Them Apart Long COVID and POTS are not competing labels: one is a broad umbrella and the other a specific, measurable diagnosis that often sits inside it. Here is how to tell what you are actually dealing with. Long COVID Jun 23, 2026 SIBO, Histamine & Why Dysautonomia Wrecks Digestion Dysautonomia doesn't stop at your heart rate, it slows your gut, invites bacterial overgrowth, and can stir up histamine problems. Here is how POTS, SIBO and MCAS feed each other, and the dietary tools that actually help. Food Jun 16, 2026 The Low-Histamine Diet for MCAS: A Practical Food List A low-histamine diet can calm the flares of MCAS and histamine intolerance by lowering your total histamine load. Here is a practical eat-versus-avoid list, the freshness rule that matters most, and why this is a short-term tool, not a way of life. Food Jun 15, 2026 Autonomic vs. Fitness Trackers: Built for Recovery, Not Performance Fitness trackers are built for healthy people chasing performance. When you are recovering from POTS or long COVID, that framing can quietly mislead you. Here is what a recovery-first tool does differently. The app Jun 11, 2026 POTS Treatment: Salt, Fluids, Compression & Medication Explained POTS treatment usually starts with volume, compression and a careful exercise ramp, and adds medication when those aren't enough. Here's how each piece works and why it's almost always a combination. POTS Jun 9, 2026 The POTS Diet: What to Eat, and Why Small, Salty Meals Help There is no single POTS diet, but a few patterns reliably help: smaller and more frequent meals, generous sodium and fluids, and steady blood sugar. Here is what to eat, what tends to backfire, and why. Food Jun 6, 2026 Pacing 101: How to Find and Expand Your Energy Envelope Pacing is the single most important recovery skill for POTS, long COVID and ME/CFS. Here is how to find the edge of your energy envelope, stop the boom-and-bust cycle, and expand your capacity without triggering a crash. Recovery May 28, 2026 Salt & Fluids for POTS: What's Proven and What Isn't "Drink more, salt more" is the most repeated advice in POTS. Here is the physiology behind it, what the evidence actually supports, and where the guidance runs ahead of the data. Research May 28, 2026 What HRV Actually Is, And Why It Matters for POTS Recovery Heart rate variability is one of the clearest windows into your autonomic nervous system. Here is what it measures, why it drops in POTS and post-viral illness, and how to read it without obsessing. HRV May 23, 2026 Exercise for POTS: The Levine Protocol & How to Start Safely Upright exercise often backfires early in POTS. The recumbent-first approach (the Levine and CHOP protocols) trains your heart lying down first, then works toward standing over months. Here is how to start without crashing. POTS May 21, 2026 The Orthostatic Stand Test: How to Do It at Home (and What the Numbers Mean) The lying-to-standing heart rate test is the single most useful at-home measurement for POTS. Here is how to run it consistently and how to read the rise and recovery. POTS May 16, 2026 Long COVID Symptoms That Point to Dysautonomia Racing heart on standing, dizziness, brain fog, exertion crashes and temperature swings after COVID often share one root: a dysregulated autonomic nervous system. Here is how to recognize the pattern and what to do next. Long COVID May 9, 2026 How POTS Is Diagnosed: The 30-BPM Rule, the Tilt Table & What to Expect POTS is diagnosed by a sustained heart-rate rise on standing without a big blood-pressure drop, symptoms lasting months, and other causes ruled out. Here is what the criteria mean and what the tests feel like. POTS