Why Your Nervous System Is The Most Important Part of Your Health

As a naturopathic doctor that has work with hundreds of individuals over the years, there is one thing that truly is the root of everything, and that’s the nervous system.

When most people hear "nervous system," they think of stress and burnout. While those are absolutely part of it, your nervous system is so much more than that.

Your autonomic nervous system, the branch that operates below your conscious awareness, controls virtually every organ in your body. Your heart rate. Your digestion. Your breathing. Your hormonal signaling. Your detoxification pathways. The list goes on.

When your nervous system is regulated, meaning it can move fluidly between activation and rest, your body can do what it was designed to do: detoxify, repair, digest & absorb nutrients, balance hormones, clear inflammation, sleep deeply, and function optimally.

When your nervous system is chronically dysregulated, stuck in a state of high alert even when there is no immediate threat, all of those processes become compromised. Not just one, but all.

What Dysregulation Actually Looks Like

Here is what I want you to understand: a dysregulated nervous system does not always look like someone having a panic attack, or like someone who is running on caffeine for months and then crashing out.

In my practice, it often looks like this:

You wake up already exhausted, even after eight hours of sleep. You then are exhausted all day but get a second wind at night, right before bed, and suddenly can’t fall asleep. You feel a low hum of anxiety that runs in the background of the day. You are reactive in ways that surprise you, such as from noises, stimulation, people. Your digestion is off or unpredictable. You get sick more than you used to. Your hormones seem impossible to balance no matter what you do, meaning you can lose your cycle, or gets multiple cycles in a month. Your skin is breaking out with no pattern and your hair is suddenly all over the place.

Sound familiar?

This is chronic activation of the sympathetic nervous system, what we commonly call “fight or flight.” And when your body believes it is under constant threat, it will deprioritize everything it deems non-essential to survival: that includes your reproductive hormones, your thyroid function, your skin, your digestion and your hair. Yes your gorgeous healthy hair. Sometimes that is the driving force of what brings people into my office. They’ve ignored all of the other symptoms their body is telling them, but suddenly one day they woke up with half of their hair gone and they are panicking.

That’s the interesting part for me. Their body is giving them all the signals, but when it comes to appearance, it’s what drives people to book the first available appointment.

Let’s go through what the signals are first so you know how to catch nervous system dysregulation early on.

The Nervous System and Weight

I know how frustrating it is to eat perfectly clean, track your macros, move your body, and still feel like your metabolism is working against you. I first hand have experience with knowing what it’s like to be “at odds” with your body.

Chronic cortisol elevation drives insulin resistance, which therefore promotes fat storage (particularly around the abdomen), slows thyroid conversion which slows down your metabolism, blunts leptin signaling (the hormone that tells your brain you are satisfied), and depletes progesterone (so now you’re in a state of estrogen dominance) and overall creates inflammation in your body.

Your body is in a state of perceived threat and it will hold onto every calorie it can. It is frustrating because people usually say I’m eating the exact same way and I’ve just gained 10-15 pounds overnight and nothing will budge. It my friend, is your insulin and hormones working against you.

But before you jump on a GLP-1, I recommend tackling your nervous system. Because I have helped hundreds of women through this, and once we get your nervous system back on track, the weight quit literally falls right off.

The Nervous System and Sleep

Poor sleep is one of the most common complaints I hear, and the most common thing people brush off. When in reality, this is the key to success for your nervous system.

Here is the mechanism. Your cortisol rhythm and your sleep-wake cycle are deeply intertwined. Cortisol should peak in the morning, within the first hour of waking, and gradually decline throughout the day, reaching its lowest point at night to allow melatonin to rise and sleep to begin. When your nervous system is chronically activated, the pattern is disrupted. Cortisol stays elevated into the evening, melatonin is suppressed, and you end up lying awake with a racing mind at 11pm even though your body is exhausted.

The other pattern I see frequently is waking between 2 and 4am and being unable to get back to sleep. This is not random. Blood sugar drops in the early morning hours, which triggers a cortisol and adrenaline response to compensate, essentially an alarm that jolts you awake.

The downstream consequences of this are profound. Deep sleep is when your brain clears metabolic waste, when your cells repair, when growth hormone is released, and when your nervous system itself recalibrates. Without it, every system suffers. Hormones become harder to balance. Inflammation rises. Cognitive function dips. Weight becomes harder to manage. It’s a never ending loop.

Addressing sleep without addressing the nervous system is like trying to fill a bathtub with the drain open.

The Nervous System and Digestion

When you are in fight or flight, your digestion takes a hit. Blood flow is redirected away from your digestive organs and toward your muscles and heart. Motility slows. Enzyme secretion decreases. Stomach acid production drops. Your gut lining becomes more susceptible to inflammation. This is why some people notice their digestive symptoms flare up when they’re stressed.

But here is what is important to understand. Many women are chronically stressed and have made this their baseline. The gut is perpetually operating in a state of dysfunction, which means poor nutrient absorption, inadequate digestion, impaired gut motility, and a compromised gut microbiome.

The gut-brain axis runs in both directions. A dysregulated nervous system impairs gut function, and a compromised gut sends distress signals back to the brain that further activate the stress response. This bidirectional relationship is one of the reasons gut issues are so difficult to resolve with probiotics and dietary changes alone when the underlying nervous system state has not been addressed.

If you have tried all the thigns and your digestion is still not right, your nervous system is worth investigating.

The Nervous System and Your Skin

If you have chronic acne, eczema, or rosacea that has not fully resolved despite addressing gut health and diet, I want you to consider this: your skin and your nervous system share a direct communication pathway. It is called the brain-skin axis.

A little science in case you’re interested - stress activates mast cells in the skin, which triggers inflammatory cascades, disrupts your skin barrier, and alters sebum production. Chronic nervous system dysregulation keeps this pathway activated. This is why stress consistently worsens inflammatory skin conditions, and why topical treatments alone will never fully resolve them.

When it comes to skin health, supporting the nervous system is an essential part of it.

Where to Start

Regulating your nervous system is not about doing a five-minute meditation once a day and then wondering why things aren’t changing. It requires consistent, changes over time.

Some of the most evidence-supported tools include breathwork (specifically 4-7-8 or box breathing), cold exposure on the face (not cold plunges), meaningful social connection (not networking, but soul nourishing friendships), time in nature (with no technology), adequate sleep (8+ hours a night), and addressing the physical stressors that keep the system activated (job, relationships - taking time away from the thing that is stressing you out the most).

The last part is the hardest part because you truly can’t heal your nervous system if you’re living in the environment that’s dysregulating it. It’s worth asking yourself, is this job or this relationship worth my health? My peace? My hair?

Until your body feels safe, any interventions will only take you so far.

My Free Nervous System Quiz

If you want to know how dysregulated your nervous system actually is, I built a short quiz for exactly that. It takes two minutes and gives you a personalized score and three targeted steps based on where you are right now.

Take the Nervous System Quiz Here

And if you are ready to work on this with support, I work with women one-on-one to identify and address the root causes driving their symptoms, including nervous system dysregulation, hormone imbalance, skin issues, and more.

Book a consultation here.