The Space Between

Six weeks, an intimate circle.

We audit the story that's running you and create the one you actually want to live.

The Space Between

Six weeks, an intimate circle.

We audit the story that's running you and create the one you actually want to live.

He challenges you, supports you, and expands your view of what's truly possible, not just in performance, but in life itself.

Tim Gurner
Founder & CEO, Gurner Group & Saint Haven

There is accountability, caring and wisdom in this container and it's potent.

Rome Shadanloo
Founder, Mycology Psychology

My bonds with my spouse and children have deepened, and my clarity and passion for my overarching purpose have never been stronger.

Cal Callahan
The Great Unlearn Podcast

The Story Running Underneath

Most people arrive here having already done a lot of the work. You track your HRV, or you've learned to read your state without the number, and you've come home to your body more times than you can count.

So the thing that's left is quieter, and harder to name. It's the story running underneath the doing. It's the pattern that shows up in every vertical of your life across your work, your relationships, your money, and, most importantly, how you treat yourself when no one is watching.

That story got you here. Whether it goes any further is yours to choose.

Six weeks, three movements

The A.R.T. of the Heart,
woven through your oldest story.

Awareness


You bring awareness to the story that's been running you, the why that once kept you safe and got you here. You name it out loud, and the circle witnesses it.

Regulation


You learn to feel where it lives in your body and stay with it. Together we uncover every flavor of your life where the same pattern keeps showing up. Other people's stories in the circle become a mirror for your own.

Transformation


Having stayed with the old story and felt it fully, you find the agency to choose a new one. You write it and speak it aloud, shaped alongside the circle, until it's yours to carry into your daily life.

Everything The Space Between Holds - $2,222

The Space Between is six weeks in an intimate circle with Salim. You finish the course first, and the full toolkit comes with it. But the heart of it is what follows: a private call with Salim followed by six weekly circles with people walking alongside you.

Six Weekly Circles with Salim

Thursdays at 4pm ET / 1pm PT. 60-minute intimate group calls where the real work happens, starting October 15

A Private call with Salim

A 45 minute 1:1 scheduled once you finish the course. Salim grounds you and helps prep your arrival to week one of the circle

HRV Fundamentals Course

Five modules (2 hours of content) released every four days for embodied integration

The HRV Reset Guided Activation

Your daily sovereignty practice (video + audio)

90 Day Access to NuCalm Mastermind Vault

$3,495 value

Apollo: 1-Year Sessions Membership + Sleep Band

$108 Value

Exclusive 25% Off RaOptics

Support your circadian rhythm and sleep

The Five Tibetan Rites guide

Ancient wisdom meets modern science

Bioharmonizing Blueprints

Salim's personal protocols for NuCalm, Apollo, RaOptics & BiOptimizers

Free Access to HRV Coach

Your AI companion for support in listening to what your body's telling you

Lifetime access

Return to these teachings whenever you need remembering

Stories from those who went deeper

Founders and leaders who came to Salim for nervous system support, and found the work reached into their relationships, their purpose, and most importantly, how they meet themselves. This is the ground The Space Between is built on.

Tim Gurner, Founder and CEO of Gurner Group and Saint Haven
Working with Salim took me to a depth of consciousness and self awareness that I've never experienced, a journey that has profoundly transformed my life.Truly a life-changing experience, on a level I've never accessed before. Working with Salim took me to a depth of consciousness and self awareness that I've never experienced, a journey that has profoundly transformed my life. What began as a seemingly simple mission to elevate my HRV evolved into a complete life shift, impacting not just me, but my wife, my children, my business, and everyone I care about. Salim's true gift is the energy, love, and deep presence he brings. He challenges you, supports you, and expands your view of what's truly possible, not just in performance, but in life itself. I could not more strongly recommend this incredible human to anyone seeking self-mastery, deeper consciousness, and next-level performance in life.
Tim GurnerFounder & CEO, Gurner Group & Saint Haven
Andrew Abraham, Founder and CEO of Orgain
Salim is a true master of HRV, but more than that, he's one of the kindest, most genuine people I've ever worked with. Through his guidance, I improved my HRV by over 50%.As the founder and CEO of Orgain, my life is a nonstop whirlwind of travel, meetings, and high-pressure decision-making. Working with Salim Najjar has been one of the most grounding and impactful decisions I've made for my health and performance. Salim is a true master of HRV, but more than that, he's one of the kindest, most genuine, and thoughtful people I've ever worked with. Through his guidance, I improved my HRV by over 50%. His coaching style is a rare blend of deep expertise and deep empathy. Salim didn't just help me hit a number, he helped me feel better, think clearer, and live more intentionally. I can't recommend him highly enough.
Andrew AbrahamFounder & CEO, Orgain
Alli Schaper, Co-Founder of SuperMush
Incorporating Salim's teachings into my daily life has elevated my energy, joy, and optimism, allowing me to thrive amidst the chaos of running multiple businesses.Salim has been my close friend and coach for three years, guiding me toward a profound understanding of nervous system balance. As a busy startup founder constantly on the move, my HRV averaged in the 40s, but through Salim's guidance it now consistently reaches the 70s and 80s, peaking at 122. His practices have revolutionized how I manage stress, navigate challenges with grace, and regulate my nervous system. Incorporating Salim's teachings into my daily life has elevated my energy levels, joy, and optimism, allowing me to thrive amidst the chaos of running multiple businesses and 90 flights a year. His expertise sets him apart as a world-class healer.
Alli SchaperCo-Founder, SuperMush
Cal Callahan, host of The Great Unlearn Podcast
My bonds with my spouse and children have deepened, and my clarity and passion for my purpose have never been stronger.From our initial meeting, I sensed that Salim truly grasped my essence. As we progressed beyond the fundamentals of HRV and explored the intricate layers of my interpersonal challenges, profound revelations ensued. Through this transformative journey, every facet of my life has aligned with my guiding North Star. My bonds with my spouse and children have deepened, and my clarity and passion for my overarching purpose have never been stronger. I cannot express enough gratitude to Salim for accompanying me on this incredible journey.
Cal CallahanThe Great Unlearn Podcast
Kate Horin, Partner at Invisible Technologies
I face high-pressure situations with beauty and appreciation, a crystal-clear mind and calm nervous system. I now intrinsically listen to what my mind and body need.I originally started with Salim hyper-focused on performance optimization, but quickly realized his coaching is far more than that: Salim teaches life optimization. He provided me with real, customized, practical tools and small changes that have had an exponentially large impact. Through working with Salim, I face high-pressure situations with beauty and appreciation, a crystal-clear mind and calm nervous system. I now intrinsically understand and listen to what my mind and body need and am far more in tune with honoring those needs. Salim is a guide and a light in this world. He has had one of the most profound impacts on my life.
Kate HorinPartner, Invisible Technologies
Ross Deutsch, Founder of Tiny Galaxy
I saw a remarkable increase in my average HRV from 22 to 58 while working with Salim, a testament to the transformative power of his approach.Salim's coaching has been an incredible journey of discovery and transformation. He seamlessly integrates ancient wisdom traditions with cutting-edge scientific research, creating a holistic approach to human health. Through his guidance I gained a deeper understanding of HRV and its role as a crucial indicator of resilience and adaptability. I saw a remarkable increase in my average HRV from 22 to 58 while working with Salim, a testament to the effectiveness of his coaching and the transformative power of his approach. I am deeply grateful for his guidance on this journey toward greater resilience, vitality, and fulfillment.
Ross DeutschFounder, Tiny Galaxy
Rome Shadanloo, Founder of Mycology Psychology
Salim has helped me tap into obstacles and alchemize them into opportunities. One of the best investments I have made in myself.Working with Salim has been a game changer. A healthy nervous system is the gateway to true self-actualization. We can get so clouded with programs of fear and scarcity that we keep unwittingly losing opportunities of expansion during trying times. Salim has helped me tap into obstacles and alchemize them into opportunities. There is accountability, caring and wisdom in this container and it's potent. If anyone is looking for the next level of personal and professional success, this may be an invitation. One of the best investments I have made in myself. He's the real deal.
Rome ShadanlooFounder, Mycology Psychology
Adam Greenfeld, Co-Founder of Thesis and Frij
I'm calmer, kinder, and more present in every aspect of my life, and the ripple effects are undeniable. My relationships are stronger, and I'm kinder to myself.When people ask what is the one thing I've done that has made the biggest improvement to my health, I say "Salim Najjar". I'm juggling multiple businesses and stress was overtaking me; burnout felt inevitable. Salim is in a league of his own, blending modern technique and ancient wisdom into a personalized roadmap. While I initially sought out Salim to improve my physical health, what I got was so much more. I'm calmer, kinder, and more present in every aspect of my life, and the ripple effects are undeniable. My employees are happier, my relationships are stronger, and most importantly, I'm kinder to myself.
Adam GreenfeldCo-Founder, Thesis & Frij
Jit Balakumar, Orthopaedic Surgeon
He immersed himself in techniques from different cultures and transported the relevant teachings to me. Single-handed, this is the most important mentorship and education I've ever had.Salim has given me tools and education at a master's level. He equipped me to enhance my HRV which directly translated to human performance. I became a better husband, friend, son, doctor and human being. As a doctor I was sceptical at the beginning, but not only did my HRV increase dramatically, I also ceased some of my own medication for chronic inflammatory conditions. He has gone around the world and immersed himself in techniques from different cultures and was able to transport the relevant teachings to me. Single-handed, this is the most important mentorship and education I've ever had. My wife and children have all commented on how present I've become, and how I have embodied calmness and love. Thank you my brother Salim.
Jit BalakumarOrthopaedic Surgeon
Amar Site
Build real power.
Amar Site
Run + swim included.
Amar Site
Feel strong in your skin.
Amar Site
Stronger every week.
Amar Site
Build real power.
Amar Site
Run + swim included.
Amar Site
Feel strong in your skin.
Amar Site
Stronger every week.
Amar Site
Build real power.
Amar Site
Run + swim included.
Amar Site
Feel strong in your skin.
Amar Site
Stronger every week.
Amar Site
Build real power.
Amar Site
Run + swim included.
Amar Site
Feel strong in your skin.
Amar Site
Stronger every week.
Amar Site
Build real power.
Amar Site
Run + swim included.
Amar Site
Feel strong in your skin.
Amar Site
Stronger every week.

MEET YOUR GUIDE

Salim Najjar, That HRV Guy™

Salim helps founders and high-performing leaders transform their relationship with stress by learning to understand what their body has been telling them, so they can lead with greater clarity and presence.

A former founder and CEO himself, he spent years studying human performance and wisdom traditions with teachers around the world, then built the A.R.T. of the Heart, the framework he has taught to hundreds of leaders worldwide. His whole work is helping people reconnect with the wisdom of their body.

What's included in The Space Between - $2,222

  • A private 45 minute 1:1 with Salim (after you complete the course)

  • Six weekly circles with Salim - Thursdays at 4pm ET / 1pm PT. 60-minute intimate group calls where the real work happens, starting October 15

  • HRV Fundamentals Course - Five modules (2 hours of content) released every four days for embodied integration

  • The HRV Reset Guided Activation - Your daily sovereignty practice (video + audio)

  • The Five Pathways For HRV Growth - Weave the A.R.T. framework through each pathway

  • 90-Day Access to NuCalm Mastermind Vault ($3,495 value)

  • Apollo: 1-Year Sessions Membership + Sleep Band ($108 value)

  • 25% OFF RaOptics - Support your circadian rhythm and sleep

  • Free Access to HRV Coach - Your AI companion for support in listening to what your body's telling you.

  • The Five Tibetan Rites Guide - Ancient wisdom meets modern science

  • Bioharmonizing Blueprints - Salim’s personal protocols for NuCalm, Apollo, RaOptics & BiOptimizers

  • Lifetime Access - Return to these teachings whenever you need remembering

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A few things you might be wondering

Got Questions?

What is HRV, and why does it matter?

HRV, or Heart Rate Variability, is the tiny variation in time between your heartbeats. It's one of the clearest windows into your nervous system: how you're meeting stress, how well you recover, and how much capacity you have to respond with presence instead of reactivity. We treat it as a language your body is already speaking.

What makes the A.R.T. of the Heart different?

Most approaches hand you more data and more protocols. The A.R.T. of the Heart teaches you to understand and listen to what your own body is telling you. Salim blends the science of the nervous system with real embodiment, so your HRV becomes a compass you can actually read, and stress becomes something you work with as an ally.

Do I need to finish the course before the circle starts?

Yes. The course is included, and finishing it before we begin means everyone arrives on the same foundational understanding. Then, right before the circle starts, your private prep call with Salim sets you up personally.

What's the private prep call?

After you complete the course, and before the circle begins, you'll have a private 45-minute call with Salim, one to one. He grounds your practice and helps you find the thread you'll pull over the six weeks, so you arrive to week one ready to begin with the group.

When are the six calls for the circle?

The circle meets weekly on Thursdays at 4pm Eastern / 1pm Pacific, for six weeks: October 15, 22, 29, November 5, 12, and 19. Each call is sixty minutes, live with Salim.

What if I can't make a call live?

The circle is built on presence, so come to all six if you can. If you do miss one, the teaching portions of each call are recorded so you can catch what you need.

Who is this for?

Anyone ready to understand their body at a deeper level. Whether you're brand new to HRV or years into your own growth, you'll find practices that build real awareness, regulation, and the capacity to meet your life with more presence. It tends to land most for people carrying a lot, founders, leaders, high-output humans, whose bodies have been paying the quiet cost.

Who is this not for?

This isn't for anyone looking for a shortcut. The A.R.T. of the Heart is built for real integration, which asks for presence and patience over time. If you want a number to climb fast without changing your relationship to stress, this is not for you.

Do I need a wearable or device to start?

No. You don't need a device to begin, and you'll get a version of the course built for exactly your situation. There's one path for people who track their HRV with a wearable, and another for those working from felt sense alone. If you wear a device, you'll learn to understand what the numbers are telling you. If you don't, the guided practices build the same awareness from the inside.

Will this actually raise my HRV?

Many people watch their baseline climb over time, but we'll never promise you a number. HRV is your unique language. When you change your relationship to stress and start living more aligned with what matters, your body tends to follow.

How long does the course take?

The HRV Fundamentals course is about two hours of content across five modules, released four days apart so the material has room to land. You move at your own pace. The practices are simple and meant to support integration.

How do I access everything once I join?

After payment, you'll receive an email with instructions for enrollment and logging in to your portal, which will have access to your course, your HRV Coach, and all your resources.

How does the HRV Coach work, and is it really free?

The HRV Coach is your AI companion built on Salim's own framework, there to support you listening to your body anytime you need it. It's free to start, so you can begin the conversation the day you arrive.

How long do I have access?

You have lifetime access to your course, your practices, and your resources. You can return to them whenever you need.

What's your guarantee if it's not for me?

Your journey is protected by my 14-day Resonance Guarantee. Take 14 days to feel whether it resonates in your body. If it doesn't, email me and I'll honor a full refund.

Copyright 2026. That HRV Guy™. All Rights Reserved.