Posts tagged "autonomic nervous system"

vagus nerve heart rate variability palpitations

Right Vagus, Left Vagus: Why Your Heart Has Two Separate Brakes

Your heart is not held in check by one vagus nerve but by two, and they do different jobs. The right vagus mostly controls how fast the heart fires; the left mostly controls how the signal passes through. Once you see the wiring, palpitations stop feeling like chaos and start looking like mechanics.

By VagusSkool Team Jul 22, 2026

sleep cortisol blood sugar

The 3 A.M. Wake-Up: Why You Jolt Awake Wired at the Same Hour Every Night

You fall asleep fine, then snap awake around 3 a.m. with a pounding heart, wired but exhausted, unable to drift back off. This is not just stress or anxiety — it is a real overnight collision between your metabolism and your autonomic nervous system.

By VagusSkool Team Jul 22, 2026

vagal withdrawal sympathetic overdrive heart rate variability

Two Roads to a Racing Heart: Vagal Withdrawal vs. Sympathetic Overdrive

A pounding, racing heart can arise two mechanistically opposite ways: your calming brake releasing, or your accelerator flooring itself. They can feel identical but they are not the same problem — and they call for different responses. Understanding which one you're dealing with explains why 'just calm down' fails, and why breathwork sometimes works when reassurance never does.

By VagusSkool Team Jul 22, 2026

vagus nerve autonomic nervous system nervous system

Your Autonomic Nervous System, Explained: A Plain-English Map of Sympathetic, Parasympathetic, and Vagal Tone

Almost every symptom people write to us about — the racing heart, the exhaustion that sleep does not fix, the gut that will not settle, the sense of being switched permanently "on" — traces back to...

By VagusSkool Team Jul 4, 2026

cold hands and feet temperature regulation autonomic nervous system

Cold Hands, Cold Feet, and a Body That Won't Warm Up: Temperature Dysregulation and the Autonomic Nervous System

"My hands and feet are always freezing, even in a warm room." "I run hot and cold with no pattern, and I sweat when I shouldn't." Temperature complaints rarely get taken seriously on their own, but...

By VagusSkool Team Jun 30, 2026

dysautonomia POTS vagus nerve

Dysautonomia and the Vagus Nerve: A Practical Guide

Dysautonomia is a confusing diagnosis with overlapping symptoms — racing heart, dizziness, GI trouble, brain fog. Here’s how to think about it through the vagus nerve, and what helps.

By VagusSkool May 7, 2026

overactive bladder pelvic floor vagus nerve

Overactive Bladder, Pelvic Floor, and the Vagus Nerve

Frequent urgent trips to the bathroom aren’t just a bladder problem. The autonomic nerves controlling your bladder share circuitry with your nervous system’s stress state — and the vagus nerve is part of the picture.

By VagusSkool May 7, 2026