Assess Recovery & Internal State With the CO2 Tolerance Test

Dr. Andrew Huberman discusses with Brian Mackenzie the significance and methodology of the carbon dioxide tolerance test, detailing how it can provide insights into one's physiological state and aid in developing specific breathwork protocols to enhance mental and physical performance.

Brian Mackenzie, founder and CEO of SHIFT, is an expert in human performance, specializing in stress adaptation through custom training protocols that enhance elite athletes, executives, military operators, and individuals with chronic issues related to autonomic dysregulation. Dr. Andrew Huberman is a tenured professor of neurobiology and ophthalmology at Stanford University School of Medicine and host of the Huberman Lab podcast.

We know we'll get questions about the drink on the table. It's from Mateina, one of our podcast sponsors, where Andrew is also a part-owner and investor. Additionally, we're excited to share that Andrew has helped create Lemon Zero, Mateina's first cold-brewed yerba mate with zero sugar.

*Social, Website & Podcast*

*Brian Mackenzie*

*Timestamps*
00:00 Introduction to Brian Mackenzie & Breathwork
00:30 Understanding the Carbon Dioxide Tolerance Test
00:53 Performing the Carbon Dioxide Tolerance Test
04:33 Interpreting Test Results and Their Implications
08:15 Applications & Benefits of the Test
11:26 Practical Tips & Resources

#HubermanLab

[hubermanlab]

Thank you for watching. If you're learning from this channel be sure to click "subscribe". Also, if you have any questions or feedback, please put those in the comments section below.
And thank you for your interest in science!

[matheusstotti]

state of anxiety rather than describing as anxious - beautiful

[WibbsYoga]

Been waiting for the combo of Brian and andrew together for about 5 years. We need more of Brian chatting to huberman

[yorunohana]

Omg you also do podcasts in nature? I love it!! It gives the video such a wonderful vibe 😍

[olgazavilohhina]

¡Hola Profe! Good one. Relatively easy to perform to check recovery on regular basis. And free. We need more of these. Thank You for for all Your hard work and care for all of us.

[jithenin]

Thank you BRIAN for explaining CO2 Tolerance Test & thank you ANDREW for this Clip 👍❤️

[pocketfulofscribbles]

❤❤❤ loved the relaxed setting, dog, and actionable information. More like this please!

[marshad.]

So cool to know this! Thanks a bunch!
Oi, I barely reached ten seconds.

[NawelAlioua-nf]

I wonder if we can use this metric to inform us about our recovery state after a workout... I have personally practiced the Wim Hof breathing technique for years and my retention times drastically go down after a workout (both resistance training and cardio). It always takes a few days to get back to my normal retention times.

[BigVlad]

I really love Andrew Huberman, ❤

I don’t mean to be a heater.

But It’s not a zero cost website.

Love you all again 💜

[kc]

This video should be underestimated. Balancing autonomous system is very important in our live including basically all the area such as productivity and even sleep

[chalermako]

Very cool, gentlemen.
Using nose on exhale is an interesting tip.
I shall try after next workout!

[andrewwhite]

Hi Andrew!

I'd love to learn more about best practices and protocols for injury recovery. Torn muscles, shin splints, runners knee, etc. Ice, heat, anti inflammatories (Motrin)?

Thanks!

[thomasbiom]

This is a change in the way he used to teach it.

Never used to be until lungs empty. Used to be until first break in exhale smoothness and fluency.

[florenciamartinez]

Hi Andrew! Great clip!
One question. When I exhale I should leave my lungs completely empty, right?
Thank you for these videos!

[ginevrajenkins]

I thought you had gotten a dog when Dozer popped up! Compassion to you in grieving Costello.

[vasko.manchev]

Is there a medical study for this method?

[matheusstotti]

I personally would consider not using the 4D timer - be only in contact with the breathing

[BigVlad]

I have 85 seconds, tested multiple times. But still not feeling great, pretty anxious

[gus]

Co2 in the blood is a great indicator of how to spot complexes that stem from trauma.