Low HRV? Chronic stress? Your nervous system is stuck. Learn how to regulate your nervous system for better hormone balance, less pain, and actual healing.

Your Nervous System Is Screaming. Here's How To Actually Listen.

I used to think rest was something you earned.

Like if i just pushed through the fatigue, the brain fog, the flares - eventually my body would get the memo and toughen up. i thought tracking my symptoms was enough. Knowing my cycle was enough. Understanding inflammation was enough.

It wasn't.

Because here's what nobody tells you when you have endometriosis, autoimmune conditions, or chronic hormone imbalances: your nervous system is running the show. And if it's stuck in stress mode, no amount of supplements, clean eating, or perfect sleep hygiene is going to fix you.

Your body can't heal when it's in survival mode.

And for most of us? We've been in survival mode for years.

THE TWO MODES YOU NEED TO UNDERSTAND

Your nervous system has two primary states:

Sympathetic (fight or flight) - This is your stress response. Your body's alarm system. It's designed to keep you alive when you're being chased by a tiger. Heart rate up. Digestion down. All resources diverted to survival.

Parasympathetic (rest and digest) - This is your recovery mode. This is where healing happens. Digestion works. Hormones balance. Inflammation decreases. Your body repairs.

The switch between these states is largely controlled by your vagus nerve - the longest nerve in your body that runs from your brainstem down through your heart, lungs, and digestive system. When your vagus nerve is functioning well (high vagal tone), you can easily shift between states. When it's not (low vagal tone), you get stuck in sympathetic.

Here's the problem: your body can't tell the difference between a tiger and an overflowing inbox. Between physical danger and emotional stress. Between a life-threatening situation and your third coffee because you're trying to push through a flare.

It all registers as threat.

And when you're living with chronic pain, hormone chaos, or autoimmune flares? Your nervous system is on high alert all the time. You're stuck in sympathetic. Your body thinks it's still being chased.

Which means it's not healing. It's surviving.

THE DATA THAT CHANGED EVERYTHING

i started tracking my HRV (heart rate variability) with my Oura ring about two years ago.

At first, it was just another data point. Another thing to optimise. Another metric to obsess over.

But then i started to see the pattern.

High HRV = my nervous system was flexible, regulated, resilient. My body could shift between stress and rest easily. i felt good. My pain was manageable. My hormones felt balanced.

Low HRV = my nervous system was stuck. Rigid. Locked in stress mode. Even when i was "resting," my body couldn't actually rest. My pain was worse. My cycle was a mess. Everything felt harder.

Here's the science: HRV measures the variation in time between each heartbeat. It's controlled by your autonomic nervous system - the same system that manages your stress response. Higher variability means your nervous system is flexible and can adapt. Lower variability means you're stuck in sympathetic dominance.

Research has shown that lower HRV is associated with increased inflammation, worse pain outcomes in chronic conditions, and disrupted hormonal patterns. In women with autoimmune conditions, low HRV is often present even during "remission" periods - showing that the nervous system dysregulation is happening beneath the surface.

The HRV data showed me what i'd been ignoring: my nervous system was struggling to regulate.

And here's the kicker - it wasn't because i wasn't doing enough. It was because i was doing too much.

THE THING ABOUT CHRONIC STRESS

When you live with chronic pain or illness, your baseline is already elevated stress.

Your body is dealing with:

  • Inflammation (a stressor)
  • Pain signals (a stressor)
  • Hormone fluctuations (a stressor)
  • The emotional weight of living in a body that feels unpredictable (a stressor)

And then we pile on top of that:

  • Work deadlines
  • Relationship dynamics
  • Financial pressure
  • The guilt of not being able to do what we used to do
  • The relentless pursuit of answers and protocols

Your nervous system is maxed out before you even leave the house.

So when your HRV drops, when your body is screaming for rest - pushing through isn't resilience. It's self-sabotage.

WHAT I DO DIFFERENTLY NOW

i used to ignore my HRV data when it was low. i'd tell myself i didn't have time to rest. That i just needed to push through. That slowing down was giving up.

Now? Low HRV is my body's way of saying: "we need to shift gears."

Not stop. Not give up. Just shift.

Morning routine (regulating cortisol from the start):

i start with 10 minutes of lymphatic drainage on my vibration plate. Gentle movement that supports drainage without spiking cortisol. Then sunlight - as much as i can get. This helps set my circadian rhythm and signals to my body that it's safe, it's daytime, we're not in crisis.

Morning light exposure has been shown to help regulate cortisol's natural rhythm. Your cortisol should be highest in the morning (the cortisol awakening response) and taper off throughout the day. When you're chronically stressed, this pattern gets disrupted - you might wake up exhausted (low morning cortisol) and feel wired at night (elevated evening cortisol). Light exposure helps reset this rhythm.

Lots of water. Hydration supports every system in your body, including your nervous system.

Then 60 minutes of walking. Not running. Not intense exercise. Walking. It regulates cortisol. It supports lymphatic flow. It gives my nervous system time to ease into the day without spiking stress hormones first thing.

Studies show that moderate-intensity exercise like walking actually helps regulate the HPA axis, while high-intensity exercise (when you're already in a stressed state) can further dysregulate cortisol patterns.

Throughout the day (interrupting the stress cycle):

i take walk breaks instead of sitting through stress. When i feel my nervous system ramping up - tight chest, shallow breathing, that wired feeling - i don't push through. i move. Even just 5-10 minutes.

i use my walking pad during work hours. Gentle, continuous movement while i'm on calls or doing admin. It keeps my body from getting stuck in that seated, stressed, sympathetic state.

When my HRV is low? i don't force intense workouts. i do gentle movement. Stretching. Yin yoga. Walking. Movement that supports my nervous system instead of challenging it.

Evening routine (signaling safety to my body):

Magnesium glycinate supplement. This isn't just for sleep. Magnesium is a cofactor in over 300 enzymatic reactions in your body, including those that regulate your nervous system. Specifically, magnesium helps activate GABA receptors - the neurotransmitter that calms your nervous system and supports parasympathetic function. Glycinate is the form that's best absorbed and least likely to cause digestive upset.

Research shows magnesium deficiency is common in women with chronic stress, and supplementation has been shown to reduce cortisol levels and improve HRV.

Cool, dark room for sleep. No screens. No stimulation. Creating an environment that tells my nervous system: it's safe to let go now.

During my luteal phase (when everything is harder):

This is the phase right before your period. Progesterone is rising. And while progesterone is essential, it also puts your nervous system in a naturally higher stress state.

Here's why: progesterone metabolites interact with GABA receptors (the same calming neurotransmitter system affected by magnesium). While progesterone can have calming effects for some women, the fluctuations and metabolites can actually increase anxiety and nervous system sensitivity in others - especially if you're already dealing with HPA axis dysregulation.

Research shows that women with endometriosis and autoimmune conditions often have altered progesterone metabolism, which can explain why the luteal phase feels particularly challenging.

Everything feels harder because it is harder.

So i give myself:

  • Extra gentleness (no pushing through)
  • More buffer time between commitments (less back-to-back)
  • Permission to say yes to less (saying no is not failure)

i used to fight against my luteal phase. Now i plan for it. i protect my nervous system during this window because i know it's already working overtime.

THE RESEARCH NO ONE TALKS ABOUT

Here's what the research shows (and what functional medicine practitioners have been saying for years):

Chronic stress dysregulates your HPA axis (hypothalamic-pituitary-adrenal axis). This is the system that controls your stress response, your hormones, your immune system, your inflammation levels.

Studies have shown that women with endometriosis have significantly altered HPA axis function and increased cortisol reactivity to stress. The research is clear: chronic stress isn't just making you feel worse - it's physiologically changing how your body responds to everything.

When your HPA axis is dysregulated:

  • Cortisol patterns get disrupted (leading to fatigue, sleep issues, weight gain). Research shows that dysregulated cortisol is linked to increased pain sensitivity in chronic pain conditions.
  • Sex hormones get deprioritized (your body literally shuts down reproduction when it thinks you're in danger). This is called the "pregnenolone steal" in functional medicine - your body diverts resources from making sex hormones to making stress hormones.
  • Inflammation increases (your immune system stays activated). Chronic sympathetic activation has been shown to increase pro-inflammatory cytokines - the exact markers that are already elevated in autoimmune conditions and endometriosis.
  • Gut health suffers (digestion shuts down in sympathetic mode). The vagus nerve, which controls parasympathetic function, is directly connected to gut motility and gut-brain communication.
  • Pain sensitivity increases (your nervous system becomes hypervigilant). This is called central sensitization - when your nervous system gets stuck in a heightened state, your pain threshold actually lowers.

Everything we're trying to fix with supplements and protocols? It all starts with nervous system regulation.

You can't supplement your way out of chronic stress.

You can't biohack your way out of a dysregulated nervous system.

You have to actually create the conditions for your body to feel safe.

THE PARADOX (AGAIN)

The women who need rest the most are the ones who feel like they can't afford it.

We're high achievers. We're problem solvers. We're the ones who've been told our whole lives that if we just try harder, we'll succeed.

But your nervous system doesn't respond to willpower.

It responds to safety.

And sometimes the most productive thing you can do is nothing.

Not because you're giving up. But because you're creating the exact conditions your body needs to heal.

WHAT THIS ISN'T

This isn't about toxic positivity or "just relax."

This isn't about blaming yourself for being stressed.

This isn't about adding more things to your to-do list.

This is about understanding that your body is giving you information. Your HRV is information. Your flares are information. Your fatigue is information.

And the question isn't "how do i push through this?"

The question is "what is my body asking for right now?"

IF YOUR HRV IS LOW TODAY

Don't panic. Don't spiral into "what did i do wrong?"

Your nervous system is asking for support. That's all.

Maybe that looks like:

  • A shorter workout (or no workout)
  • Saying no to the thing you don't actually want to do
  • Going to bed earlier
  • Taking the walk break even though you're "too busy"
  • Asking for help
  • Letting the dishes sit

It doesn't have to be perfect.

You're not trying to optimise every variable.

You're just trying to create a little more space for your nervous system to regulate.

THE THING I WISH SOMEONE HAD TOLD ME

Your body isn't broken.

It's doing exactly what it's designed to do.

When you've been living in chronic stress, chronic pain, chronic inflammation - your nervous system adapts. It gets stuck in survival mode because that's what's kept you going.

But survival mode isn't sustainable.

And the way out isn't more pushing, more optimising, more control.

The way out is learning to listen.

To trust that when your body asks for rest, it's not being weak. It's being wise.

To understand that regulating your nervous system isn't a luxury. It's the foundation of everything else you're trying to fix.

WHERE TO START

If you're reading this and feeling overwhelmed - start small.

Pick one thing:

  • Track your HRV for a week and just notice the patterns
  • Take one 10-minute walk when you feel stressed
  • Add magnesium glycinate before bed
  • Give yourself permission to rest during your luteal phase without guilt

You don't have to overhaul your entire life.

You just have to start listening.

Your nervous system has been screaming.

It's time to actually hear it.