What is nervous system regulation?

Nervous system regulation is the ability to consciously shift between sympathetic (fight-or-flight) and parasympathetic (rest-and-recover) states. Through structured breathwork protocols, you can train your autonomic nervous system to respond to stress with control rather than reactivity.

How does breathwork improve performance?

Breathwork improves performance by increasing CO2 tolerance, enhancing vagal tone, and training the nervous system to maintain composure under pressure. This translates to better focus, faster recovery, improved sleep quality, and access to creative flow states.

What is CO2 tolerance training?

CO2 tolerance training involves controlled breath-hold exercises that gradually increase your body's comfort with elevated carbon dioxide levels. Higher CO2 tolerance reduces panic sensitivity, improves oxygen delivery via the Bohr effect, and builds resilience under physical and psychological pressure.

Who is the Poseidon Breath Method designed for?

The Poseidon Breath Method is designed for high performers including athletes, executives, creators, speakers, and professionals who want structured, science-backed nervous system training rather than generic wellness breathwork.

Can I do Poseidon Breath training online?

Yes. Poseidon Breath offers live online sessions via Zoom available worldwide, private 1-on-1 coaching sessions online, and a comprehensive online course launching soon. In-person sessions are available in Tulum, Mexico.

5-Day Private Breathwork Masterclass

THE EXPERIENCE

What This Is

A 5-day private coaching experience with Tavi Castro. Each 1.5-hour session builds on the last, with fully personalized protocols, real-time coaching, and direct feedback. By the end, you don’t just understand breathwork — you know exactly what works for you.

What You Will Achieve

Control over your stress response
The ability to shift your state on demand
Increased mental clarity and focus
Higher resilience under pressure
Faster recovery from stress and fatigue
A personalized breathwork system

THE PROCESS

How It Works

Day 1 - Nervous System Mapping

We assess how your system currently operates, including stress response patterns, baseline regulation, strengths, and limitations.

Day 2 - Regulation and Control

You learn how to downregulate effectively and create internal stability on demand.

Day 3 - Performance and Activation

We build the ability to activate focus, energy, and execution when needed.

Day 4 - Stress Exposure and Adaptation

You learn to stay controlled and regulated under increasing physiological and psychological pressure.

Day 5 - Integration

We refine your personal system and structure it into a sustainable daily practice that fits your lifestyle.

IS THIS FOR YOU?

Who This Is For

This Is For You If…

You are an entrepreneur operating under constant pressure.
You are an athlete seeking control and recovery.
You are a creative looking to unlock flow states.
You are a high performer who wants precision over your state.
You are ready to go beyond generic breathwork.

This Is Not For You If…

You are looking for casual or passive learning.
You want surface-level techniques without structure.
You are not willing to engage fully for 5 days.

Format

5 consecutive days (flexible scheduling available)
1.5 hours per session
Online (Zoom) or in-person (Tulum upon request)

Investment

$2,000 USD

Apply for the Masterclass

This is a limited offering. To maintain quality and personalization, spaces are restricted. Apply below and we’ll schedule a short 15-minute call to confirm fit.

Book Now

Not Ready for Private Coaching?

If you’re not ready for private coaching, start with the live session. It’s a great introduction to the method.

Join the Live Breathwork Session ($29)

You don’t need more information. You need the right system.