Reading your nervous system, in plain language.

What HRV measures, why it falls in POTS and post-viral illness, and how to read RMSSD, SDNN and power without obsessing.

HRV

Best Time of Day to Measure HRV: Why the Morning Reading Wins

Oct 8, 2026

Heart rate variability swings with the clock, so when you measure matters almost as much as how. Here is why a morning reading taken right after waking is the one most people should track, and how to take a clean one.

HRV

HRV vs Resting Heart Rate: What Each One Tells You

Oct 6, 2026

HRV and resting heart rate are the two numbers most recovery apps put front and center, and they answer different questions. Here's what each one measures, why they usually move in opposite directions, what it means when they don't, and how to read them together without spiraling.

HRV

Meditation and HRV: Does It Actually Raise Vagal Tone?

Oct 5, 2026

Meditation does nudge heart rate variability up, but most of the lift comes from slow breathing, and the lasting change shows up in your baseline over weeks, not in any single session. Here's how to tell real signal from placebo in your own numbers.

What to eat when your gut and nervous system are dysregulated: the POTS diet, low-histamine and MCAS eating, the SIBO gut connection, the Mediterranean pattern, and simple meal ideas for hard days.

Food

CoQ10 for Long COVID and POTS: Does It Help Fatigue and HRV?

Oct 10, 2026

CoQ10 is one of the most recommended supplements for post-viral fatigue, usually on the strength of its real role in how your cells make energy. The evidence for long COVID specifically is thin, the heart-failure and migraine data is stronger, and the honest move is to test your own response. Here is the physiology, what the trials actually show, the ubiquinone-versus-ubiquinol question, the POTS and warfarin cautions, and how to track whether it helps you.

Food

Electrolyte Drinks for POTS: How to Choose One (and a DIY Recipe)

Oct 9, 2026

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

Intermittent Fasting and POTS: What It Does to HRV, and Whether to Try It

Oct 3, 2026

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.

Practical guidance for postural orthostatic tachycardia syndrome and broader dysautonomia, from daily patterns to what actually moves recovery.

POTS

POTS and Insomnia: Why You're Wired but Tired and Can't Sleep

Oct 15, 2026

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

Blurry Vision and Visual Symptoms in POTS and Dysautonomia: Why Your Sight Changes When You Stand

Oct 14, 2026

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.

Long COVID

Antihistamines for MCAS: H1 and H2 Blockers in POTS and Long COVID

Oct 13, 2026

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, ME/CFS and MCAS overlap heavily with dysautonomia. What connects them, why they travel together, and how to track the parts you can measure.

Long COVID

Antihistamines for MCAS: H1 and H2 Blockers in POTS and Long COVID

Oct 13, 2026

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.

POTS

Nausea in POTS and Dysautonomia: Why You Feel Sick and What Helps

Oct 12, 2026

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

Cold Hands and Feet in POTS and Long COVID: Why It Happens and What Helps

Oct 11, 2026

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.

The long view, pacing, trends, milestones and turning months of data into decisions that bend your recovery the right way.

POTS

POTS and Insomnia: Why You're Wired but Tired and Can't Sleep

Oct 15, 2026

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.

HRV

Meditation and HRV: Does It Actually Raise Vagal Tone?

Oct 5, 2026

Meditation does nudge heart rate variability up, but most of the lift comes from slow breathing, and the lasting change shows up in your baseline over weeks, not in any single session. Here's how to tell real signal from placebo in your own numbers.

Food

Vitamin B12, Dysautonomia and HRV: The Deficiency Worth Ruling Out

Oct 2, 2026

Low vitamin B12 can damage the nerves that run your heart rate and blood pressure, which is why it can look and feel a lot like dysautonomia. Here is the honest picture: how a deficiency produces POTS-like symptoms, why the standard serum test misses the grey zone, the confirmatory labs to ask for, why B12 is far safer to correct than vitamin D, and how to track your own response.

How the Autonomic app works: scoring readings against medical thresholds, reading trends, and using AI to turn your data into doctor-ready summaries.

The app

Dysautonomia Awareness Month 2026: Ten Mornings, One Giveaway

Sep 28, 2026

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

Introducing the Pacing Budget: Know How Much Today Can Take

Sep 11, 2026

Autonomic now turns your morning readings into a daily pacing budget, measured in minutes of effort. It counts what really costs you, warns you before you cross the line, checks itself two days later, and lives on your Journal, your home screen and your Apple Watch.

HRV

The Best HRV Chest Strap: Polar H10 vs COOSPO H808S

Jul 25, 2026

A chest strap is the single biggest upgrade you can make to your HRV data. We tested the Polar H10, the research gold standard, against the far cheaper COOSPO H808S. Both are good. Here is where they differ and which one to buy.

Plain-language summaries of new research on HRV, POTS, long COVID and dysautonomia: what the studies actually found, and what it means for you.

POTS

The Water Bolus for POTS: How Fast Drinking Water Raises Blood Pressure

Aug 28, 2026

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.

Research

What the Latest Research Says About Long COVID & Dysautonomia (2026)

Jul 7, 2026

An honest read on where the science stands in 2026: long COVID and ME/CFS increasingly look like related post-viral illnesses with measurable autonomic dysfunction, and the evidence is converging on why.

Food

The Mediterranean Diet for Long COVID: What Evidence Shows

Jul 3, 2026

Long COVID involves persistent, low-grade inflammation, and the Mediterranean pattern is one of the most anti-inflammatory ways to eat. Here is what the 2025 evidence actually shows, and how to start without overwhelming yourself.

Start-here explainers, the core concepts and vocabulary behind reading your nervous system as a recovery instrument.

POTS

Blurry Vision and Visual Symptoms in POTS and Dysautonomia: Why Your Sight Changes When You Stand

Oct 14, 2026

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.

HRV

Best Time of Day to Measure HRV: Why the Morning Reading Wins

Oct 8, 2026

Heart rate variability swings with the clock, so when you measure matters almost as much as how. Here is why a morning reading taken right after waking is the one most people should track, and how to take a clean one.

Basics

Non-Dipping Blood Pressure: Why Yours Should Fall at Night

Oct 7, 2026

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.