Freakonomics Radio
Hosted by Stephen J. Dubner
Public bathrooms are noisy, poorly designed, and often nonexistent. What to do?
5,515 words · 13 speakers
Speaker names marked ? are inferred from speaking time and the show’s known hosts — they are not voice-verified.
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So Lev, here's a question for you today. Would you agree that you and I are fundamentally pretty different people?
Yes.
Okay, I would too. But of all the ways in which we're different, what would you say is maybe the biggest difference?
Probably that you like people and I don't.
Mm hmm. Yeah, that's not what I was thinking of.
Okay.
Here's the one I'm thinking. You seem to be almost entirely unaffected by your physical surroundings.
That's true. That's completely true.
Whereas you ridicule me for being too sensitive. Like, if the lights go out or something, you're like, hey, Dubner, just keep working. What's the problem? But like, when you're working or even, you know, filling out your horse bedding stuff, you could be in the desert, you could be in a room with 150 decibels, and you're just a machine. It doesn't matter to you. Would you agree that that's a pretty fundamental difference between us?
I think so, yeah. But there's a downside to it, too, which is that when I get dragged to nice places, I never appreciate them.
Yeah, you don't know how to behave.
I don't know. If I don't care whether I'm in a dingy pit or standing on the edge of the Grand Canyon, then I get the feeling that other people appreciate things that I don't appreciate.
Maybe so. You make up for it in other ways.
But here's a scenario that really bothers me that I want to talk to you about today. But you may be the wrong guy to talk about it, too, because I have a feeling it doesn't bother you at all. So you and I both travel a lot, fly a lot, and here's my thing. In airport restrooms particularly, but in public restrooms of all types, they are usually totally devoid of any music or other masking sounds. So it's like you walk in and it's like a library punctuated by the sound of traveling men using toilets. And it drives me batty. Does that bother-- do you even know what I'm talking about?
No, it doesn't upset me the way I'm sure it upsets you.
Mm-hmm. Have you noticed it? Have you ever noticed, like, let's say, we don't need to get too graphic here, although with radio, it's probably easier to get graphic. But, you know, you walk into a men's room and there's, let's say, there's three zones, right? There's the sink zone, the urinal zone, and the stall zone. And it's the stall zone that I'm talking about.
Yeah, I try to stay away from the stall zone. I'm pretty good at staying away from the stall zone.
Believe me, I do, too. I do, too. But, you know, audio waves travel into the sink zone and the urinal zone and the in-and-out zone. And so in that, I feel like when I hear what's going on in that stall zone, I think, how can I invest more heavily in gastroenterology? Because the needs of American men are plainly huge. It just sounds like a mash unit of people in gastric distress. And I hate it. You've never been bothered by this?
Oh, it's disgusting, but honestly, I really try to avoid restrooms where there are lots of men doing fireworks, you know? So maybe we're not so different in that particular regard. It's just that maybe my own abilities to avoid these places are stronger than yours.
From WNYC Studios, this is Freakonomics Radio, the podcast that explores the hidden side of everything. Here's your host, Stephen Dubner.
Here's what confuses me. Just about every public space you go to these days, you'll hear music being played or some kind of a soundscape. Stores, restaurants, the doctor's office, the gym, the airport, the rental car counter at the airport, the gas pump outside the rental car counter at the airport. So that's a lot of sound to deal with. And the one place you want to hear music, at least the one place I want to hear music, the public restroom. It, for some reason, features only the sounds of nature, which are, to some ears, unsettling. And why is that? And how does all that music in other places affect us? Does it really make us buy more in stores, eat more in restaurants? If you want to know the answer to questions like that,
you have to start with Ronald Milliman. He spoke to us from his cabin on Lake Barkley, Kentucky.
I'm actually in the western part of Kentucky.
Milliman is retired. He spends a lot of his time here fishing.
Mostly blue gale and red eared and bass and catfish. I like to fish for and catch catfish. So pretty much, I just like to fish. So I just like being out in the lake. You go out in the early morning and it's just so quiet and peaceful and you hear the birds and hear the waves splashing against the side of the boat. And it's just, I mean, it's just really, really nice.
Milliman was a professor of marketing at Western Kentucky University. Before that, when he was getting his PhD in Arizona, he worked at a radio station.
One of the assets that we had at the radio station was a FM subcarrier where we could transmit like background music into stores and doctor and dentist offices and that sort of thing.
This got Milliman to wondering.
I wanted some idea of what kind of music affected, you know, what kind of music to provide. And there wasn't much of any research out there at all on it.
Muzak, the company that got famous for making background music or elevator music, did make some research claims, but Milliman found it completely unscientific. He says they claimed their music did amazing things.
Reducing turnover, increasing productivity, helping in terms of job contentment, dumber things like that. And as I recall, they had some research that showed that it could increase the milk productivity of cows, egg productivity of chickens, which later when I got into it, it wasn't very scientific. But at any rate, because there was no research particularly done in that area, it's something that I made note of and thought, well gee, this is something that I could pursue.
Now, there's one more reason why Ronald Milliman might have been a little bit more interested in the average person in measuring the effects of sound.
I had perfect vision until I was eight and through a very rare illness that I contracted when I was eight, I lost most of my vision. I had partial vision from about eight to 17. Then I lost my eyesight at 17, the rest of what I had through a very freak wrestling accident. I was a varsity wrestler in my high school wrestling team. I was totally blind through undergraduate and graduate school. Then there was a doctor in Houston that felt he could restore my vision.
By now, Milliman was in his first academic job at the University of Texas at Arlington. He went in for surgery.
And sure enough, it did restore my vision. As a matter of fact, I had incredible vision. I had like 2015 vision or 2010 vision or something like that. 2020 is normal vision and I had much better than that for a while. But it was a real challenge to keep it because there was lots and lots of complications that I really wasn't hardly prepared for.
With these complications came many more surgeries, more than 50.
I had vision for about four years or thereabouts. I was actually driving a car and everything. And then again through complications, I just, I lost it all. I lost it totally permanently. So I've actually lost my eyesight twice.
Blind again, he turned back to sound for his research.
There was a grocery store in the Dallas-Fort Worth area.
It just happened that I knew the manager of the store some.
This manager agreed to let Milliman set up an experiment.
Well, we wanted to know whether the background music affected behavior in any way.
Here's how they set it up. They'd play fast music, slow music, and no music, and see if it changed how people shopped.
So then comes the question, all right, then, how do you define slow and how do you define fast?
Milliman and the other researchers played music for a group of people who shopped at the grocery store. They asked them, do you think this is slow music? Is this fast?
So as I recall, the slow music was something like 72 or 74 beats per minute, or slower, I think.
So that would be something like this.
Or this.
And the fast music was something like 94, 96 beats per minute and faster.
Like this.
Now, the actual music they used in the experiment, slow or fast, would have no lyrics.
And then we positioned graduate students that appeared to be like ordinary customers, like they were looking at a can of peas or whatever it might be.
The grad students had stopwatches and notepads. They watched people and timed them as they shopped. One day, they'd play fast music. Another day, slow music. Another day, no music at all. This went on for roughly two months, so they'd have plenty of observations. They also stopped shoppers as they came out of the store and asked them, do you remember if there was music playing in the store when you were shopping? Here's what Milliman wanted to know.
If how fast people traversed the store, if it made any difference, for instance, how much they purchased or whatever, or what they purchased. But the other part of the study was... How aware of the music were they when they were in the store? Were they real aware of the music playing? Or were they unaware of the music playing? Or whatever?
So, what'd they learn?
And so what we found is that with the fast music, they did traverse the store more quickly. And it was significantly more quickly.
What do you think happens when people move through a store more quickly? Yep, they don't buy as much stuff. But what happens when you play the slow music?
Yeah, now that's a really interesting one because sales were significantly greater. And I say significant, I mean literally in the scientific statistical sense. Significantly greater sales with a slower music playing than with a fast background music playing.
With fast music playing, the Dallas grocery store did about $12,000 in sales each day. With slow music, $16,000. Interestingly, most of the shoppers, when asked upon leaving the store about hearing music, couldn't recall whether or not they heard music. Furthermore, there wasn't a statistically significant difference between no music and slow music, or no music and fast music. But between slow music and fast music, a difference. How did Milliman explain this?
The theory was, and we have reason to believe this is pretty accurate, is that people simply, as you slowed them down, they saw more that they remembered that they needed, or they saw more that they wanted. Sometimes, you know, if you glance down an aisle, you've probably done it when you shop, you're at the end of the aisle and you sort of glance down the aisle, see if there's anything down there that you want or need.
For Milliman, the takeaway from this one study was pretty obvious.
Well, it's clear that music does affect people's behavior in a lot of different ways.
This study was one of the first in a field that would come to be known as atmospherics. How sound and smell and other factors influence our behavior. Milliman did a ton of work in this area. One study was similar to the grocery store study, but this time he did it in a restaurant. There, too, he found that slow music makes people linger, which is great news if you're trying to sell more alcohol or maybe dessert. And if you need to turn over tables faster? Yep, bring on the fast music.
By now, there's been enough research that we know a good bit about how we're affected by different types of music and other sounds. The right music can reduce stress for a patient waiting for surgery, can help a kid do better on math tests. Classical music leads people to buy more wine than top 40 music. But the wrong music, or the wrong sounds, can be bad for you, too. If you work in an open office, for instance, also known as a cubicle farm, you're more likely to be stressed out, less productive, less satisfied. That's in large part because you're getting a lot of stimuli that you don't ask for, like other people's conversations and phone calls. And you can't simply shut these out, no matter how good you think you are at concentrating.
We all have a limited amount of auditory bandwidth. And as the sound expert Julian Treasure likes to say, "We don't have any ear lids."
This becomes more of a problem when you're hearing someone else's noise, someone else's music everywhere you go. Everywhere except the one place where you want some music. The louder and faster, the better, please. The bathroom.
Coming up on Freakonomics Radio, it's time to take back the toilet.
Anything, literally anything, would be better than nothing.
There used to be an Italian restaurant in California that I would go to, and they piped in Italian lessons. And so while you're in the bathroom, you're hearing, "Can you tell me where is the train station?"
So there's a lot of music in public places, in part because researchers have found that music has a strong influence on how people behave in public places. So you can see why they play music in stores, and restaurants, and airports, even surgical suites. But why don't they play music in public restrooms? That is the question we are asking today. I know it may strike you as juvenile, kind of thing no one in his right mind would ask, but we are not the only people who've ever thought about this.
The toilets in Abu Dhabi are fine. They're good.
That's Harvey Malich. He's a professor of sociology and metropolitan studies at New York University.
The toilet really, in a way, is my landing spot because it's where all of these issues of city, and of artifact, and design, all come together, particularly in the public restroom.
Malich's broad mandate is urban design, but he is more narrowly a toilet scholar. One of his books is called Toilet: Public Restrooms and the Politics of Sharing.
Our knowledge of the history of public restrooms is very scattered, but one of the things that we do learn is the extraordinary variation there has been in the history of the world. In the Roman Empire, they had quite marvelous plumbing for their time, and the aqueducts and so forth. And one of the things they applied that to was public restrooms, the baths. And the baths were, in general, a very social place. People went together, they met up together, and some of the rooms held as many as 60 people.
The setting, Malich says, is quite beautiful, with mosaics on the floor and the walls.
The toilets are arranged in a sort of semicircle. They're built of stone, a single slab of stone, with a series of holes. And the people are sitting as close together as we sit when we sit on toilets in public restrooms.
So there were no stalls, at least not what we think of as stalls today.
One of the interesting things is that they wore togas. So the toga was their stall. By wearing the toga, you have a way of keeping your private parts private, even as you're sitting on the toilet.
But Malich agrees that modern public restrooms can be pretty unpleasant, and we shouldn't really expect them to get better anytime soon.
One reason it doesn't change is that toilets in general and public restrooms, there's a taboo around them. And where there's a taboo and you can't speak freely about something, it becomes a place where there's not accountability. So whereas the iPhone, we can question, how come it's like this? How come it's like that? Wouldn't it be better to this? Or that? Or a sofa for the living room? You can't really talk through a toilet.
Now, it's one thing for someone like me, a resident of the richest country in the history of the world, to complain about the setup of public restrooms, but let's be real. The bathroom taboo that Malich is talking about has much, much, much bigger implications.
So the distribution of toilets of any kind is very skewed. And in some countries, India being a prime example, Pakistan, there is an absence of facilities. And what that means is that people go in the open. They use whatever trench they can find, whatever hole there might be. This is a problem with sanitation, and it means that the mixing of human feces with water supplies happens, and babies die. It's almost 50% of the population of India is defecating under those circumstances.
One of the other aspects, it means that women are put at a huge disadvantage and subjected to security worries because they've got to make their way in the night, very often in darkness, to go to the common place where this is done. Because of other problems, cultural problems, which is that the very idea that women are going to the toilet itself is a kind of taboo and can't be faced front on.
This taboo, Malich argues, extends to high places, very high places. And that's a problem.
For the President of the United States to go to bat for public restrooms in, say, India, would be humiliation for him. So we've got to get the topic on the agenda locally, nationally, and globally.
There are also practical issues, issues of priority, cost. Harvey Malich has served on many building committees.
Even working with the most prominent architects of the world, never is their discussion about the substance of the toilet stalls. And as a result, you get, the lowest person typically on the totem pole of the architectural firm is given that job, and then they sort of call up the mass supplier, and they just order the same stuff.
One of the things that is kind of interesting is thinking about public restrooms.
That's Joel Beckerman. He's a composer and sound designer.
Think about all the architects and energy that gets put into designing the physical locations that we go to, whether it's bus stations, or restaurants, or hotels. The vast majority of these instances, they're not putting nearly the same amount of thought into the sound of those spaces, which includes what materials are being used, because that determines the amount of reverberation of sound.
Beckerman's company, Manmade Music, creates soundscapes for all kinds of spaces, from small to very large, like the Dallas Cowboys stadium. He's written a book called Sonic Boom: How Sound Transforms the Way We Think, Feel, and Buy. He has a lot of examples of how sound functions in ways that we might not necessarily think about.
In Moscow, actually, their subway is a circle. It is basically a big loop. And one of the ways they give you information in an instant is that one direction, I'm not sure whether it's clockwise or counterclockwise, all the announcements are made by a male voice. And then the opposite direction in the loop is made by a female voice. So that even if you can't understand exactly what's being said, you know which direction that train is going.
Beckerman agrees with Harvey Malich that the sound of the average American public restroom is suboptimal. Why is that? They point out one obvious problem. The walls of the stalls aren't really walls. They don't go all the way up to the ceiling or all the way down to the floor.
I mean, I lived in Britain. I've lived in Germany. They have walls. Italy has walls. Stall walls. That's, you know, step one. Then if you want to get really groovy like the Japanese.
It may not surprise you to learn that bathroom design in Japan is rather advanced. What you're hearing is called the sound princess. As the story goes, Japanese women were so put off by the silence in public restrooms that they'd flush the toilet over and over again to mask the noise, which worked, but also used a lot of water. The solution? A device that mimics the sound of an ever-flushing toilet.
The Japanese use sound in all sorts of interesting ways.
Many towns have intercoms mounted on public buildings throughout the city. This one plays a daily message around sunset.
That's in Matsudo, about an hour outside of Tokyo. The woman's voice is basically telling kids, hey, it's time to go home now. The intercoms are networked around cities. They serve as an emergency broadcast system in case of earthquakes, for instance.
Here in the US, we too have a history of sound design in public places. Joel Beckerman again.
The story is that elevator music began when elevator manufacturers realized that people were very uncomfortable being in close quarters in a closed room, essentially.
So you have to ask yourself, if we feel the need to mask uncomfortable silence in an elevator, wouldn't you think we'd feel the need to mask uncomfortable noise in a public restroom? We stopped in to a ladies' room, well, outside of a ladies' room, to ask people what they'd like to hear inside.
What do you think would be the best kind of music in a bathroom? What would you like to listen to?
Anything, literally anything would be better than nothing. Maybe classical music? The Beatles.
Always, or different kinds.
I know, pretty much early Beatles in the public bathroom, I think, would always be appropriate. I would probably choose to hear Hall & Oates.
Beyonce 24/7.
I feel bad relegating them to the bathroom because I love them so much, but I love them so much that I would want to hear them that frequently.
Depends on the type of music, I guess. I mean, like elevator music, everyone complains about that, so I feel like bathroom music would turn into elevator music, where everyone's like, "Hey, this sounds like bathroom music."
The sociologist Harvey Malich, in his tireless pursuit of toilet improvement, once came across something he loved.
There was, used to be an Italian restaurant in California that I would go to, and they piped in Italian lessons. And so while you're in the bathroom, you're hearing, "Can you tell me where is the train station?"
Can you tell me where the train station is?
And then you hear it in Italian.
Mi sa dire dov'è la stazione ferroviaria?
So there are many ways to do it, in ways that are amusing, charming, and you can try out, have new groups audition and create new acts.
And Joel Beckerman would like to improve the sonic design of airport restrooms.
In a plane terminal, you'd want to be relaxed a little bit. People generally are a little bit nervous when they go flying. So what could we do in terms of putting quiet ambiances in that would mask out the unwanted sound and actually kind of relax people before they got on a plane?
I went back to Steve Levitt, my Freakonomics friend and co-author, to see where he landed on this.
Okay, so here's the paradox to me. Even you agree that it's not a great thing to listen to, especially if you're an innocent bystander. And here's the paradox. It's not great to listen to, and yet, there's very rarely music or other masking noise in public restrooms, whereas, in other public areas, like every other public area, hotel lobbies, airports, stores, restaurants, et cetera, et cetera, et cetera, et cetera, et cetera, there's a lot of music in public these days, which can be great or horrible, depending on your preference. Don't you think it's a little bit strange that the one place that I, at least, want a lot of music doesn't exist, and all the other places where we might not want it, it does?
Given your description, how loud would the music have to be to actually protect you from the sounds you're afraid of? Pretty loud, right?
I'm thinking it would sound like the loudest rave you've ever been to, yeah.
I think that's part of the problem, is that I think if there was subtle music, which was then interfered with by the sounds that distribute so much, I think it would only enhance your rage, wouldn't it?
If it were subtle music? You're saying it would somehow highlight or punctuate the bad sounds?
Yeah, exactly, that you'd be listening to this. I don't know. I mean, I think it would be hard. I think, from what you're describing, I think that the sounds are so loud that... I mean, they're louder than conversation, right?
Yeah, but there's something about them as pieces of punctuation in the midst of a vast silence, of this pronounced silence, that, to me, draws that much more attention to them. I'll tell you, the restroom at WNYC, the radio station in New York where I do this show, you walk in there... And it really is like a funeral home. And you just hear little, like little bitter patter. And then there's a couple stalls back there. And even if you're just standing washing your hands, even if you're just going to wash your hands, you get hit with blam, blam. And then, and then the sounds of human distress. And I'm thinking, this doesn't need to happen. This could be taken care of. Some, I mean, we've put men on the moon.
We've done a lot of amazing things. And so maybe this is a problem that no one cares about but me, and it's not worth thinking about. But if you were to, we were to put your brain on it, any thoughts? Do you think it's worth thinking about? Do you think the public restroom is a, a place that deserves a little bit of our curatorial attention?
No, I think this is like the penny. It's something only you care about and no one else cares about it, getting rid of the penny. But I don't know. No, I don't lose any sleep over it. Now, maybe I will now. Maybe now every time I go in a bathroom, I'll be primed to be upset by it. But hey, I just thought, I just thought the answer.
Tell me.
Well, do you own a set of headphones?
Yeah, no, I believe me. I wear the noise cancelers.
Why don't you just wear your headphones into the bathroom and just turn up your music really loud? It'll be done. So you don't mind the smell, though?
I don't want to even get into the smell.
See, because for me, the smell would be at the top of the list and the sound would be quite secondary. I would trade smell or sight for sound, myself.
Sight? Who's, bring me in sight. Now you're, you're taking this already bad idea to a much darker place.
Coming up next time on Freakonomics Radio, we all know about the huge decline in manufacturing jobs.
We would conservatively estimate that more than a million manufacturing jobs in the US were directly eliminated as a result of China's accelerating trade penetration in the United States.
We can't continue to allow China to rape our country, and that's what they're doing.
It's the same story throughout most of the big, wealthy Western economies, but not this one.
We don't hear that sort of anti-globalization, anti-China rhetoric.
How did Germany come out on top?
Germany has a very unusual economic geography. In Germany, the unions have representatives on the board of the company.
Germany is not a shareholder economy, it's a stakeholder economy.
How did the sick man of Europe become its superstar? That's next time on Freakonomics Radio.
Freakonomics Radio is produced by WNYC Studios and Dubner Productions. This episode was produced by Susie Lechtenberg. Our staff also includes Alison Hockenberry, Merritt Jacob, Greg Rosalsky, Stephanie Tam, Eliza Lambert, Emma Morgenstern, Harry Huggins, and Brian Gutierrez. You can subscribe to Freakonomics Radio on Apple Podcasts, Stitcher, or wherever you get your podcasts. You should also check out our archive at Freakonomics.com, where you can stream or download every episode we've ever made. You can also read the transcripts, and you can find links to the underlying research. And you can find us on Twitter, Facebook, or via email at [email protected]. Thanks for listening.
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