Something in the world of floating have you stumped?
Show Highlights
The Parasympathetic Nervous System is the part of your body that gets really excited when the rest of your body is winding down. Taking care of the digestive and rest systems are an important part of human health and physiology. How do float tanks affect this system?
Many of the studies on floating have demonstrated an impact on the parasympathetic nervous system. Graham and Ashkahn talk about the information that’s been studied so far.
Show Resources
Buy your tickets for the 2018 Float Conference!
Book hotel rooms for the Float Conference
Check out our Free Scientific Research List for up to date information on all float related research
The Float Clinic at the Laureate Institute of Brain Research (Justin Feinstein’s research)
Annette Kjellgren’s Research page at Karlstad University
Justin Feinstein’s Talk at last year’s Float Conference
Tom Fine’s Talk from the 2014 Float Conference
The Float Research Panel from the 2015 Float Conference
Listen to Just the Audio
Transcription of this episode… (in case you prefer reading)
Graham: All right.
Ashkahn: Welcome.
Graham: Hello everybody.
Ashkahn: Yeah. This is Ashkahn.
Graham: I am Graham.
Ashkahn: We’re gonna answer a question today.
Graham: Which is, “have there been any studies that show floating engages the parasympathetic nervous system?” The old PNS.
Ashkahn: Yeah. Yeah. Yes.
Graham: Thank you for the question. Good luck finding them.
No, let’s start with what the parasympathetic nervous system is.
Ashkahn: Yeah. It’s not the sympathetic nervous system.
Graham: Bingo. Therein lies the entire story.
The sympathetic nervous system is generally much more active. It’s when your adrenal system activates. The parasympathetic nervous system is your rest and digest system, sometimes called.
Ashkahn: Yeah. The little phrases are fight or flight, versus rest and digest.
Graham: Yep. Parasympathetic is much more associated with things like digestion, as you can imagine, with your heart rate slowing, breathing slowing.
Ashkahn: Resting.
Graham: All these things, if you’re familiar with floating, which hopefully you are since you’re listening to us ramble on about it day after day.
Ashkahn: If not, welcome. It’s about to be really exciting to you.
Graham: Right, those are the activities we associate with floating. When you’re in the tank, your heart rate slows, your breathing slows, you calm down.
Ashkahn: People say they come out feeling very hungry sometimes.
Graham: It’s because you’re activating your parasympathetic nervous system. That’s what we’re talking about here.
Ashkahn: This is most likely a very simplified view of the entire thing, but I always think about it as our bodies react to the external environment. When there’s stuff you have to do or there’s an animal trying to eat you, or all the stuff that generally comes with staying alive, your body has to prioritize resources.
Graham: Yeah.
Ashkahn: If a bear is chasing you, your body is like, “You know what we should be doing right now is digesting food.” It allocates the resources it needs to deal with the much more important stuff that’s happening, and then when you don’t have things like that going on, your body shifts into another mode. It’s like, “Great, now we have time to do maintenance stuff. Let’s repair things, let’s rest, let’s grow.” Part of human growth can be part of the rest and digest system.
I think there’s very acute cases of children, of huge amounts of stress in their childhood actually being stunted in terms of their growth. All this stuff is our body switching the fire hose of resources around.
Graham: Yeah. As far as studies showing that that’s the system that’s being activated, for any study that actually looks at humanmetrics and is measuring heart rate, is measuring our brain wave levels even, or what’s going on to us physically in the tank, you’d be hard pressed to find any of those studies that don’t point to the parasympathetic nervous system being activated.
Ashkahn: Yeah. Like most of the stuff you hear about in terms of research, of cortisol levels, and heart rate, and blood pressure, and-
Graham: Breathing.
Ashkahn: Breathing. All these sorts of things are those kinds of effect, the effects of your body switching gears like that.
Graham: I’ll turn the question around to you listener and say, “Do you know of any studies that don’t show the parasympathetic nervous system being activated, that are focusing on humanmetrics.” ‘Cause I would say, “I can’t think of any.”
Ashkahn: Yeah. It seems like it’s just a big broad category of things that our body does, and almost everything is showing, I think that’s probably one of the symptoms of an overabundance of stress in our society, is that our bodies don’t have as much time to be in the parasympathetic nervous system mode as we used to. We used to have longer periods of activating that, and that just gets a little bit harder in modern society with cars, and blinking lights, and sound effects, and all that sort of stuff that our bodies interpret sometimes as things they need to respond to, and things they need to respond to with more of our active survival instincts.
Graham: Yeah. I remember having a discussion with Glenn Perry at some point, one of the founders of our industry, and owners of some Samadhi Tank Company. He was saying, it wasn’t that long ago where we’d finish up a day of work, and then maybe we’d sit on our porch and watch the sunset, and think about things that we done during the day. Maybe we’d reflect and say, “Oh, you know, I was a little too mean in that scenario.” Or, “Oh, my calf hurts. Maybe I should take it a little easy there.” It’s true, we’re a society of chronic stress these days. We don’t have that down time. To me, the fact that the float tanks do activate the parasympathetic nervous system, they, as Glen Perry was saying, recreate this end of the day relaxation contemplation that we used to get very naturally, is a lot of their benefit. It’s certainly at least for me, one of the big things that I take away from floating, is forcing that rest and digest system back into my busy life.
Of those, I guess just to name some, I would say the early ones like John Turner, Tom Fine, they took some really detailed metrics the best that they could do for the time when they were running research back in the ’80s, up through the ’90s. They’re some of the people whose early findings are showing this parasympathetic nervous system activating. More recently, Justin Feinstein has just been collecting a bunch of data on biological metrics and marking. Just to kick you off, those are two big ones. But I think Anette Kjellgren over in Sweden, and the Swedish researchers have also shown the same results. Again, any study that you’re looking into where it’s focusing on this biological aspect of floating, you’re probably find that same parasympathetic nervous system activation.
Question answered, I guess?
Ashkahn: Yeah. Yeah, I guess we did it. We only know so much about the technicalities of all this stuff. The same with that we’re not lawyers, or doctors, or economists. We’re also not researchers. I feel pretty good about the broad strokes of how all this stuff works, but I’m pretty sure there’s plenty of nuance too, to the human body.
Graham: I’ve never found that to be true, but if you disagree, go over to FloatTankSolutions.com/podcast and shoot in your own questions so we can embarrass ourselves with that analogy.
Ashkahn: Yeah. Please.
Graham: It’s what we live for.
Ashkahn: All right. Bye everybody.
Graham: Thanks.
Recent Podcast Episodes
Surface Disinfectant for Tank Walls – DSP 335
What’s the best way to clean the inside of a float tank? And what sort of product should you use?
It turns out that this deceptively simple line of questioning has a major explanation involved. Ashkahn and Graham share what they’ve learned at the World Aquatic Health Conference about surface disinfectant and the best way to protect your float rooms.
Putting a Shower in A Separate Room – DSP 334
Most float centers run a tight schedule with narrow margins for the transitions between floats. Oftentimes relying on their customers to take reasonably timed showers to fit that schedule. If a single customer takes a shower that’s a bit too long, it can throw of the schedule for the rest of the day!
What if showers were in a separate room? Then customers could shower as long as they want! Ashkahn and Graham explain why this is an extremely bad idea.
Having Doors Open into the Hallway – DSP 333
Float centers, more so than some other brick and mortar businesses, tend to be desperate for maximizing the efficiency of their space. And float rooms would have so much extra space if they didn’t have to deal with a door swinging in and out all the time. Why don’t float centers do it this way instead?
Well… Graham and Ashkahn explain exactly why centers don’t do this already, along with the vast majority of other buildings being made currently. It’s likely a code violation and even if it weren’t, it’d probably be unnecessarily hazardous to travel through your center that way.
Using H2O2 Instead of Chlorine – DSP 332
Let’s say you buy a center and want to use H2O2 instead of the chlorine that was being used by the previous owner. Or maybe you want to switch over to H2O2 after using chlorine for a while. Let’s further assume that this is in compliance with your health department and your UV system is sized adequately. What else do you need to know to make this happen? Do you need to change the water?
Ashkahn and Graham lay out all the things to consider and why someone may or may not want to replace the solution in their tank at the same time as replacing the water treatment method in a float tank.
How to Sell a Float Center – DSP 331
It’s not an easy decision to sell a float center. But when you do come up to that point, what do you do? Who do you talk to and how does it work? Should you hire on a broker? What sort of timeline should you expect?
Having never sold a business, Graham and Ashkahn aren’t exactly experts on the subject, but they offer informed advice on where to sell and how long it’ll probably take.
Latest Blog Posts
The Relationship Between the MAHC and Float Tanks
The MAHC stands for the Model Aquatic Health Code. This is a document put out by the Centers for Disease Control that is a set of guidelines for recreational water sanitation and operations.
The MAHC is what is called a “model code,” which means it is not a regulation in and of itself. Instead, the CDC puts out the MAHC as a document which they consider to be a really nice set of code language for recreational water facilities (mostly pools and spas). The MAHC includes everything from the process of getting permits…
The Daily Solutions Podcast – Our Top 5 Episodes from January
We’ve gone through yet another month and Graham and Ashkahn still haven’t split the podcast studio in half with paint and declared a Cold War on each other. Maybe next month. In the meantime, we’ve collected some of the gems from January (heretofore to be known...
A New Year, a New Research List
When we first released the floatation research list back in 2011, it was as close to a comprehensive list as we could create. It was put together in an effort to illustrate that sensory isolation was a thoroughly studied practice and there was scientific evidence for the health claims we were making.
Many float centers adopted this list for their own uses and put it on their sites, spreading the information and making it more available.
In this post, you’ll learn about the updates made to our float research list.
The Daily Solutions Podcast – Our Top 5 Episodes from December
Since a new episode is released, every day, we thought we should do a roundup of some the top episodes so far to keep you from missing out on important topics in the floatation community.
Behold the creme de la creme of podcastery, if you will. Here they are, in chronological order
