Nick Harlingen

I help you build a nervous system resilient to stress with applied neuroscience.

Severe trauma or stress is just the start of the calmest chapter of your life.

[Nick Harlingen @UNLIMITEDCALM]

People keep asking what I actually do because I write about posture one day, brainwaves the next, trauma after that.

The answer is pretty simple: I work on the nervous system from multiple entry points.

I work with people dealing with stress, nervous system dysregulation and complex mind-body symptoms.

That can show up as anxiety, poor sleep, brain fog, chronic tension, dysfunctional breathing, shutdown, postural compensation, or simply being unable to properly switch off.

My background became pretty multidisciplinary because of that.

I'm a neurofeedback practitioner trained in the school of Marty Wuttke. Neurofeedback gives me a brain-first way of working with regulation, attention, arousal and the patterns the brain has learned to return to automatically.

For the physical side I work with posture, breathing mechanics, ribcage and pelvic position, gait and sensory input.

I've spent years studying this through formal coursework, mentorship and direct work with highly experienced practitioners and therapists, including in-person training in the US with people who have spent decades doing this work.

That taught me to see posture and movement as part of nervous system regulation, and physical input as another way into someone's state.

I'm also a certified personal trainer and breathwork coach, and have spent years studying trauma work, meditation, breathing physiology, movement, nutrition and the wider physiology of stress.

A lot of this started because I had to figure it out for myself.

I recovered from C-PTSD/PTSD and became slightly obsessive about understanding why some things could change my state enormously while other supposedly useful things did almost nothing.

Eventually I stopped thinking in modalities.

With clients I use my own method now. Sometimes the fastest entry is neurofeedback. Sometimes breathing and posture. Sometimes we need to change movement, sleep, nutrition, training, thought patterns, recovery or how the person is interacting with stress.

These things constantly affect each other.

I've watched people become calmer and then physically carry themselves differently. I've also watched people change how they breathe, stand and move and become noticeably calmer.

You can change the nervous system through the brain or through the body. Change one enough and the other often starts changing with it.

That's why you'll see me writing about brainwaves one day, diaphragms the next, trauma after that, and something seemingly unrelated the day after.

Everything I do comes back to the same question:

What is this nervous system adapting to, and which input would change the whole pattern fastest?

That's the work I do with clients, and what I write about here.

[Nick Harlingen @UNLIMITEDCALM]

@collnsmith Excellent for driving on dingy jungle canyon rope bridges. Like when you're chasing a group of criminals dressed as ghosts when you're solving a mystery.

[Nick Harlingen @UNLIMITEDCALM]

Sitting behind screens causes forward head posture and it's not why you think.

[Fez☯️🐸 @Zenfrog4]

This is what living inside (left) vs outside (right) looks like.

[Nick Harlingen @UNLIMITEDCALM]

@0SeaDawg0 they only smell if they find you annoying

[Nick Harlingen @UNLIMITEDCALM]

@meditationstuff Do you meditate with or without a mask

[Nick Harlingen @UNLIMITEDCALM]

@GutOptimized @jack_schroder_ What about applying topical MgCl and going by if it stings. I've heard this around.

[Nick Harlingen @UNLIMITEDCALM]

How much of "you" is just compensation?

[Nick Harlingen @UNLIMITEDCALM]

How much of "you" is just compensation?

[Nick Harlingen @UNLIMITEDCALM]

@grok @CaseySapp So would you say my money is best spent elsewhere?

[Nick Harlingen @UNLIMITEDCALM]

@grok @CaseySapp If that same practitioner is claiming these modalities fix long covid "ultrasound + equiscope + biomagnetism + Kaqun bath + rife machine"

Would you count that as bullshit or hard facts

[Nick Harlingen @UNLIMITEDCALM]

Study the Bohr effect and CO2's role in vasodilation. These are core to tissue oxygen delivery: higher local CO2 lowers hemoglobin affinity for O2 and increases blood flow. Review standard respiratory physiology texts on gas exchange and the oxyhemoglobin dissociation curve. Mastering this foundation closes the gap for anyone focused on cellular oxygenation.

[Nick Harlingen @UNLIMITEDCALM]

@grok @CaseySapp @Grok would you trust a practitioner that is focused on raising cell oxygenation but says 'im not familiar enough' when asked about CO2's role in raising cell oxygenation?

[Nick Harlingen @UNLIMITEDCALM]

@grok @CaseySapp @Grok What would you advise such a practitioner

[Nick Harlingen @UNLIMITEDCALM]

@BreatheLesss @arsalendi speaks on this

[Nick Harlingen @UNLIMITEDCALM]

CO2 baths have stronger evidence for cell oxygenation. They raise blood flow up to 3x and tissue PO2 ~10% via vasodilation plus the Bohr effect (better O2 release from hemoglobin). Oxygen baths boost local skin PO2 substantially by direct diffusion, yet deeper cellular data stay limited and mostly company-linked. Few direct comparisons exist; CO2 likely supports overall delivery better.

[Nick Harlingen @UNLIMITEDCALM]

@grok @CaseySapp @grok what works better an oxygen bath or a co2 bath for cell oxygenation

[Nick Harlingen @UNLIMITEDCALM]

@CaseySapp That doesn't make sense, CO2 is needed for cell oxygenation

[Nick Harlingen @UNLIMITEDCALM]

@CaseySapp So what's the goal with the kaqun bath?

[Nick Harlingen @UNLIMITEDCALM]

@nicholashojx Throw in some candy bars for dinner and that's peak health basically

[Nick Harlingen @UNLIMITEDCALM]

Crackheads never get sick. They have baking soda in their body all day. Today, drink a little baking soda water and increase your co2, cell oxygenation and overall health. Be like a crackhead.

[Nick Harlingen @UNLIMITEDCALM]

@Zenfrog4 Sunset wallpaper on my ipad

[Nick Harlingen @UNLIMITEDCALM]

@Zenfrog4 I have OCD about ticks. No ticks I would just sleep in a ditch now and then

[Nick Harlingen @UNLIMITEDCALM]

@CaseySapp What are you doing?