WEBVTT - Noise Pollution: Arrrgh! 0:00:01.480 --> 0:00:04.280 Welcome to Stuff you Should Know, a production of I 0:00:04.360 --> 0:00:13.760 Heart Radio. Hey, and welcome to the podcast. I'm Josh Clark, 0:00:13.800 --> 0:00:16.599 and there's Charles W Chuck Bryant, and there's Jerry over there, 0:00:16.600 --> 0:00:21.120 and this is stuff you should know. Can I tell 0:00:21.120 --> 0:00:26.880 people what just happened? Sure? After what going on? Fourteen 0:00:26.960 --> 0:00:30.120 years coming up? Yeah? And I guess in April Jerry 0:00:30.160 --> 0:00:36.159 hit record and you went, hey, everybody, Wait, I've been 0:00:36.200 --> 0:00:38.599 having a lot of trouble with my brain lately. I 0:00:38.640 --> 0:00:41.280 think I'm just hey, I think you're doing great. I 0:00:41.280 --> 0:00:43.199 don't know if I told you, thank you. I think 0:00:43.240 --> 0:00:45.839 you're doing great too. Um, I don't know if I 0:00:45.920 --> 0:00:49.480 told you that I had trouble remembering how to um 0:00:49.520 --> 0:00:53.800 what six plus seven added together to the other day? 0:00:53.840 --> 0:00:58.720 That sounds familiar? That really bother? Yeah, and that's like 0:00:58.800 --> 0:01:02.000 my favorite number, and it's like I just couldn't do it. 0:01:02.680 --> 0:01:04.440 I was putting my daughter to bed the other night, 0:01:04.480 --> 0:01:09.319 and as she was going to sleep, literally falling asleep, daddy, 0:01:09.560 --> 0:01:14.240 what's four plus four? Eight? Was six plus two? It's 0:01:14.240 --> 0:01:19.959 also eight? Okay. She's learning math, and you know that 0:01:20.040 --> 0:01:23.280 first stuff you learn is literally just that simple addition, 0:01:23.880 --> 0:01:25.800 and it's just funny to think about, like, wow, that's 0:01:25.800 --> 0:01:28.360 what's on her mind right now. Yeah, but also she's 0:01:28.440 --> 0:01:34.720 learning acceptance too, just unquestioning. Can I tell people how 0:01:34.760 --> 0:01:38.120 you spelled this document that you sent my way for 0:01:38.200 --> 0:01:41.959 this noise pollution episode? Sure? Boy, you're just playing it 0:01:42.000 --> 0:01:44.959 all out there, aren't you. It was fun because it 0:01:45.000 --> 0:01:48.000 looked like a heavy metal band. It was n O 0:01:48.280 --> 0:01:52.040 I Z E p O I think it was p 0:01:52.160 --> 0:01:57.520 O L l U s h U n Y and 0:01:57.640 --> 0:01:59.120 looking at him and pay for I was like, oh, man, 0:01:59.240 --> 0:02:02.720 that's that's a good bad band name. It is, like 0:02:02.920 --> 0:02:04.640 that's a that's a good name for a made up 0:02:04.640 --> 0:02:09.560 band in a movie like Wild Stallions. Yes, and yeah, 0:02:09.600 --> 0:02:13.760 although that's tough to compete with, you know it is. Um. 0:02:13.919 --> 0:02:16.360 I also think we should, uh, we should give a 0:02:16.360 --> 0:02:21.480 little c o ay here. I think it's impossible for 0:02:21.520 --> 0:02:25.240 you and I not to turn into old man complaining 0:02:25.280 --> 0:02:28.560 about like loud music and loud mufflers and stuff in 0:02:28.560 --> 0:02:31.600 this episode. So it's gonna happen. I think everybody who 0:02:31.639 --> 0:02:33.639 knows us and saw the title of this one knew 0:02:33.639 --> 0:02:35.480 it was going to happen. But let's just put it 0:02:35.520 --> 0:02:38.480 on the table now. Well and It's also funny you 0:02:38.480 --> 0:02:41.280 mentioned this because I did mention noise pollution. I introduced 0:02:41.280 --> 0:02:44.560 that concept to my daughter the other day and said, 0:02:45.200 --> 0:02:46.960 you know, she was like, well, what's that and I said, well, 0:02:47.000 --> 0:02:49.920 it's it's as bad as trash on the road, but 0:02:50.480 --> 0:02:53.560 it's noise that's doing it and you should be aware. 0:02:53.639 --> 0:02:57.680 And she was like, okay, um. And I guess it 0:02:57.720 --> 0:03:00.440 never occurred to me that like loud noises for kids, 0:03:00.520 --> 0:03:03.440 unless it's something that really bothers them, it's just part 0:03:03.440 --> 0:03:08.080 of life. Sure, it definitely seems to become more bothersome 0:03:08.120 --> 0:03:12.000 the older you get. Absolutely. I think I don't know why, 0:03:12.080 --> 0:03:15.120 but I'm going to hypothesize that it's because you grow 0:03:15.240 --> 0:03:18.600 to learn that it doesn't have to be that way, 0:03:18.919 --> 0:03:21.960 and if you come to really resent the things and 0:03:22.000 --> 0:03:25.840 the people who are making it. So yeah, and I 0:03:25.880 --> 0:03:30.160 think that's why people One reason people retire to the 0:03:30.200 --> 0:03:32.480 country or something like that, if they've lived in the city, 0:03:32.520 --> 0:03:37.000 their whole life just a little more tranquil, perhaps even 0:03:37.160 --> 0:03:42.680 bucolic lifestyle quieter. And there's a lot of science behind 0:03:42.720 --> 0:03:44.320 It's not just like oh, I don't want to hear 0:03:44.360 --> 0:03:47.520 those noises. As you will see throughout this episode it 0:03:47.640 --> 0:03:50.560 is it's bad for your health. Hey, speaking of retirement, 0:03:50.600 --> 0:03:57.360 have you seen that documentary on the Villages? It is bonkers. Yeah, 0:03:57.440 --> 0:03:59.960 I saw it um actually when I had COVID when 0:04:00.000 --> 0:04:02.600 on a documentary binge, and that was one of them. Man, 0:04:02.720 --> 0:04:05.280 it was like one of the most disturbing documentaries I've 0:04:05.280 --> 0:04:07.800 ever seen, and I've seen like dear Zachary, and somehow 0:04:07.840 --> 0:04:10.400 it was like up there with it. It was good 0:04:10.440 --> 0:04:12.320 man that I mean, I don't want to give anything, 0:04:12.520 --> 0:04:16.000 but the one guy that was you know, this sort 0:04:16.040 --> 0:04:21.200 of discosta that was It's kind of funny at first, 0:04:21.240 --> 0:04:22.960 but then that got really sad to a lot of 0:04:22.960 --> 0:04:25.159 a lot of layers and all of it was incredibly 0:04:25.200 --> 0:04:29.200 sad that it was highly recommended. Yeah, just bizarre, man. 0:04:29.320 --> 0:04:31.360 And then I was watching the credits and I saw 0:04:31.440 --> 0:04:34.640 Darren aaron Oski was an executive producer. I'm like, okay, 0:04:35.240 --> 0:04:38.479 you go. Now, thing suddenly clicked a little more. I 0:04:38.520 --> 0:04:40.560 thought a great idea for a movie would be a 0:04:40.600 --> 0:04:42.960 setting like that. You couldn't call it that because it's 0:04:42.960 --> 0:04:46.599 I'm sure proprietary, but the town said, yeah, a setting 0:04:46.680 --> 0:04:49.200 just like that where they wake up one day and 0:04:49.200 --> 0:04:52.599 there's been a murder and then like you know, col McLaughlin, 0:04:52.640 --> 0:04:54.080 it's kind of a twin peaksy thing, you know, the 0:04:54.560 --> 0:04:56.880 stranger from a strange land comes in to investigate a 0:04:56.920 --> 0:04:59.760 murder in a very unlikely place and all the sort 0:04:59.800 --> 0:05:01.040 of or does there I think that would be a 0:05:01.080 --> 0:05:04.320 cool movie or TV show. Well, I mean that is 0:05:04.360 --> 0:05:07.680 Twin Peaks basically, right, But you could if you said 0:05:07.680 --> 0:05:11.120 it in a retirement community in Florida, people, you could 0:05:11.120 --> 0:05:14.040 just walk away dust in your hands off, like job. Well, 0:05:14.680 --> 0:05:16.080 there's plenty of things that have done this. It's not 0:05:16.120 --> 0:05:18.440 just Twin Peaks, sure, I know, just nobody did it 0:05:18.440 --> 0:05:22.320 better than Twin Peaks. I A um, alright, so noise pollution. 0:05:23.400 --> 0:05:25.520 I think the fact of the podcast to me came 0:05:25.600 --> 0:05:27.760 right up front, and that I never thought of the 0:05:27.800 --> 0:05:32.200 fact that a decibel was a tenth of a bull 0:05:33.320 --> 0:05:36.479 or a bell, which his name is DECI right there. Yeah, 0:05:36.640 --> 0:05:38.560 I know, I've never thought of it either, because you 0:05:38.640 --> 0:05:41.760 never hear of any other variation. It's like one decibel, 0:05:41.800 --> 0:05:45.120 ten decibles, a hundred decibles, you know. Um. And apparently 0:05:45.160 --> 0:05:48.479 a bowl or bell b E L is named after 0:05:48.520 --> 0:05:51.560 Alexander Graham Bell too. I didn't know that either. And 0:05:51.600 --> 0:05:54.760 the reason why we why a decibel is used, which 0:05:54.800 --> 0:06:01.000 is one tenth of a bell um, is because a decibel, 0:06:01.080 --> 0:06:04.080 a one tenth of a bell difference in sound is 0:06:04.160 --> 0:06:10.480 the lowest, the smallest difference that humans can detect. So 0:06:10.600 --> 0:06:14.719 we trade in decibles here on, and we trade in 0:06:15.320 --> 0:06:18.600 an algorithm when we talked decibles, because it's one of 0:06:18.640 --> 0:06:22.479 those weird things where it's not like a hundred decibles, 0:06:22.560 --> 0:06:25.640 is it twice as loud as fifty decibles. It's spit 0:06:25.680 --> 0:06:29.880 into an equation that's actually one dred thousand times as loud. Yeah, 0:06:29.920 --> 0:06:35.320 So so like ten decibles, the difference between ten decibles 0:06:35.320 --> 0:06:39.000 and twenty decibles is twenty decibles is ten times louder. 0:06:39.200 --> 0:06:42.600 The difference between ten decibles and thirty decibles, thirty decibles 0:06:42.600 --> 0:06:46.640 is a hundred times louder. It's logarithms and zero dbs 0:06:46.960 --> 0:06:50.039 as we'll call them. That is the threshold of human 0:06:50.080 --> 0:06:54.760 hearing period. And a hundred and forty decibels is about 0:06:54.800 --> 0:06:58.760 where you can start to experience literal physical pain from 0:06:58.800 --> 0:07:01.080 a sound. Yeah, I saw between a hundred and twenty 0:07:01.080 --> 0:07:05.640 and a hundred and forty. Yeah, it ranges like uh, 0:07:05.680 --> 0:07:10.120 I mean I've been to some loud concerts and small venues. Yeah, 0:07:10.200 --> 0:07:13.240 Dinosaur Junior at Variety Theater was it for me. I 0:07:13.280 --> 0:07:15.160 was just about to say, Dinosaur Junior, they're one of 0:07:15.160 --> 0:07:19.400 the legendary loud bands. It was insane. It is super loud, 0:07:19.440 --> 0:07:21.840 but it's not like I don't remember feeling pain, but 0:07:21.880 --> 0:07:24.280 I do remember feeling discomforted a couple of these where 0:07:24.320 --> 0:07:26.480 I was like, jeez, this is like I like my 0:07:26.560 --> 0:07:28.760 music loud, but this is a little much. Dude. Yeah, 0:07:28.800 --> 0:07:31.400 like I don't wear your plugs. I wore your plugs 0:07:31.400 --> 0:07:33.640 in that. And I was like, I'm saving myself right now. 0:07:33.720 --> 0:07:35.960 It was so loud, and I meant to say Variety 0:07:35.960 --> 0:07:39.080 Playhouse is not Variety Theater. Yeah, because we played there before. 0:07:39.080 --> 0:07:41.480 We don't want a dis no, I know you know that. 0:07:42.960 --> 0:07:46.880 But all of this to say, um god bless Jay Mascus. Yeah, no, 0:07:46.960 --> 0:07:49.720 it was great, but it was really loud. What about 0:07:49.720 --> 0:07:52.080 this conversation that we're having. What is that? Well, it 0:07:52.160 --> 0:07:57.400 depends a normal conversation something around sixty decibls. And I 0:07:57.440 --> 0:08:01.080 saw that that's people standing about a meter apart um 0:08:01.120 --> 0:08:04.600 speaking without raising their voices. That's sixty decibles right there. 0:08:04.600 --> 0:08:08.120 For a reference, What about a car. Cars are about 0:08:08.120 --> 0:08:11.920 ten times louder to ten hundred to a thousand times 0:08:11.920 --> 0:08:14.920 louder than normal conversation, depending on the car of the truck, 0:08:15.600 --> 0:08:20.560 between seventy and ninety deciples. What about an airplane, So 0:08:20.760 --> 0:08:23.640 you would think, okay, a normal conversation is sixty decibles, 0:08:24.160 --> 0:08:26.920 airplane being a hundred twenty desciples is twice as loud. No, 0:08:27.040 --> 0:08:36.560 my friend, it's it's a hundred thousand times louder. An 0:08:36.600 --> 0:08:39.800 airplane is a hundred thousand times louder than a normal 0:08:39.840 --> 0:08:43.320 conversation if it reaches a hundred and twenty decibles. All right, 0:08:43.440 --> 0:08:46.640 If you've ever been on a tarmac, uh like a 0:08:46.679 --> 0:08:49.480 live tarmac and heard a plane kind of landing or 0:08:49.520 --> 0:08:52.920 taking off, you that's just some loud stuff. Yes, and 0:08:52.920 --> 0:08:54.920 that's why they wear those cans on their ears. Yeah, 0:08:55.000 --> 0:08:57.920 they and they definitely should because we're starting to realize 0:08:57.920 --> 0:09:00.520 that there's all sorts of hearing loss, sides of the 0:09:00.559 --> 0:09:03.160 traditional ones that you can pick up on a regular 0:09:03.200 --> 0:09:05.959 hearing test. There's something called hidden hearing loss that we're 0:09:05.960 --> 0:09:10.240 just starting to get our mind around, where the structure 0:09:10.760 --> 0:09:14.800 of your hearing apparatus in your ear, the little sillia 0:09:14.920 --> 0:09:17.160 that's almost like a venus fly trap trigger hair, but 0:09:17.320 --> 0:09:21.280 for sound instead. Um like, those things can be intact, 0:09:21.960 --> 0:09:24.960 but the neurons that form the chain between your ear 0:09:25.080 --> 0:09:28.599 and your brain can be permanently damaged so that the 0:09:29.040 --> 0:09:32.640 sound that gets to your brain is garbled or or 0:09:33.000 --> 0:09:35.960 partially missing. And that's a huge thing that can happen 0:09:36.000 --> 0:09:39.679 at much lower intensity than than we understood before. And 0:09:39.840 --> 0:09:41.800 speaking of intensity, I think we should say real quick, 0:09:42.000 --> 0:09:45.440 a decibel to us humans, we we basically talk in 0:09:45.480 --> 0:09:49.240 decibels as like a measure of volume, because that's what 0:09:49.360 --> 0:09:52.559 it appears to like us, like an increase in decibels 0:09:52.640 --> 0:09:54.800 is an increase in the volume of the sound. But 0:09:54.920 --> 0:09:58.800 really what a decibels measuring is the intensity of the 0:09:58.880 --> 0:10:03.240 disturbance of an air of the air that's something has made. 0:10:03.440 --> 0:10:05.560 So if you're really close to that disturbance, it's going 0:10:05.559 --> 0:10:08.760 to be a very intense exposure to your ear. If 0:10:08.760 --> 0:10:10.959 you're further away, it's going to be a much less 0:10:11.000 --> 0:10:14.320 intense intense exposure because it kind of dissipates over distances. 0:10:15.200 --> 0:10:18.400 But to you, it's just registering is a difference in volume, 0:10:18.400 --> 0:10:21.079 where really it's a difference in the intensity of the 0:10:21.120 --> 0:10:25.560 wave that's being produced that's traveling through the air. That's right. 0:10:25.840 --> 0:10:29.840 And uh, this is all sound. Yes, that's not noise. 0:10:29.960 --> 0:10:32.520 Noise is different. Noise is what we're talking about. Mainly. 0:10:33.040 --> 0:10:38.240 A noise is classified as unwanted sound. Yeah, that can 0:10:38.360 --> 0:10:42.240 vary depending on who you are, obviously. Uh, you know, 0:10:42.440 --> 0:10:47.040 the sound of your significant other's voice after forty years, 0:10:47.080 --> 0:10:51.560 maybe noise to you asking for some tea. The sound 0:10:51.600 --> 0:10:54.960 of a Harley Davidson motorcycle being rebbed up in front 0:10:55.000 --> 0:10:58.200 of your house might be noise. Or those uh, those 0:10:58.240 --> 0:11:02.120 blowers that used to hay until you love and use. 0:11:02.440 --> 0:11:04.480 I still don't love it, and I went battery powered, 0:11:04.520 --> 0:11:06.640 but it's still even while I'm using, I'm like, I'm 0:11:06.640 --> 0:11:10.000 a terrible person. But you get it done quickly, probably right, 0:11:10.080 --> 0:11:13.040 so quick, so quick. I'm like mincing and prancing, just 0:11:13.040 --> 0:11:16.160 getting in ton Uh. And there's a lot of kinds 0:11:16.160 --> 0:11:21.000 of different noise. Um. Sometimes, like let's say you work 0:11:21.000 --> 0:11:25.000 in a in a machine shop or something and you 0:11:25.120 --> 0:11:28.920 use a machine, like the the sound the machine makes 0:11:29.880 --> 0:11:34.480 is like it's not necessary, but it's it's a byproduct. Uh, 0:11:34.480 --> 0:11:37.920 it's a result of the machine. Working correctly. It's not like, well, 0:11:38.000 --> 0:11:39.560 let's just make this thing loud. It's like, well, I'm 0:11:39.600 --> 0:11:42.520 sorry that Jackammer is going to be loud, because that's 0:11:42.520 --> 0:11:44.960 just the way it goes. My friends are are Jackammer. 0:11:44.960 --> 0:11:50.120 Episode is fantastic. Um. So that sound isn't necessarily noise, 0:11:50.240 --> 0:11:53.360 but the intensity and repetition of that sound makes it 0:11:53.400 --> 0:11:57.240 becomes noise. Yeah. Yeah, it's an unwanted intensity, or it 0:11:57.360 --> 0:12:00.840 can just the sound existing itself, like you're saying, like 0:12:00.840 --> 0:12:05.640 a leafblower, just an unwanted existence of sound. So either way, 0:12:05.679 --> 0:12:11.120 the operative thing is it's unwanted sound. That's the key, right. Yeah. 0:12:11.160 --> 0:12:13.559 And and this is another cool fact of the episode 0:12:13.559 --> 0:12:16.280 I think is that, uh they they think that as 0:12:16.360 --> 0:12:20.080 late as through the nineteen forties and into nineteen fifty, 0:12:20.320 --> 0:12:23.240 natural sounds were still the dominant sounds that you heard, 0:12:24.440 --> 0:12:28.000 um and then things really changed. Yeah, because there's a 0:12:28.080 --> 0:12:30.640 there's a big qualifier that a lot of researchers make 0:12:30.720 --> 0:12:34.719 that and not everybody does, But that noise is by 0:12:34.800 --> 0:12:39.920 definition human caused, like either we're yelling or whatever, um 0:12:40.080 --> 0:12:43.439 or one of the machines that we've created is making noise. 0:12:43.520 --> 0:12:46.000 But that you wouldn't say, like the sound of that 0:12:46.040 --> 0:12:49.679 waterfall is noise. Like we don't think of like natural 0:12:49.760 --> 0:12:53.800 sounds typically as noise. It's just sounds. And as we'll see, 0:12:53.960 --> 0:12:58.040 it's probably because we have been living, like our species 0:12:58.080 --> 0:13:02.079 has been living around those sounds and has definitively excluded 0:13:02.120 --> 0:13:05.679 them as threatening, so that there they don't They don't 0:13:05.800 --> 0:13:10.200 produce like an irritation in us. They just are sound, 0:13:10.720 --> 0:13:14.920 almost regardless of how intense they are, right and that 0:13:15.080 --> 0:13:19.000 and again that irritation is subjective because that rock concert 0:13:19.080 --> 0:13:23.320 that I enjoy, someone else might call that noise. That uh, 0:13:23.400 --> 0:13:26.960 that Space Shuttle launch that is super loud might be 0:13:27.040 --> 0:13:30.000 noise to some people, but to others, you know, it's 0:13:30.040 --> 0:13:33.200 the same sound, but they they don't think of it 0:13:33.200 --> 0:13:36.640 as noise because they're excited and exhilarated in the moment 0:13:36.720 --> 0:13:39.440 to see and hear that thing. Yeah. So you know 0:13:39.520 --> 0:13:44.280 the other night, Uh, the inspiration for um crew came 0:13:44.320 --> 0:13:47.200 back on the Dragon Capsule. Did you watch that? No? 0:13:47.360 --> 0:13:49.760 Did you? Did you see it live? Uh? We didn't 0:13:49.800 --> 0:13:51.920 see it because they splashed down in the Atlantic, but 0:13:52.000 --> 0:13:54.040 we heard the sonic boom it made when it came 0:13:54.120 --> 0:13:57.239 back into the atmosphere over Florida. It was a stounding 0:13:58.280 --> 0:14:01.520 Did you see that sonic boom? No? I didn't. Oh, 0:14:01.559 --> 0:14:04.559 it's really good. It starts off like, oh god, this 0:14:04.640 --> 0:14:07.560 is not good. This is like a terrible corporate ad, 0:14:08.240 --> 0:14:10.920 and then it really starts to find its feet. It's 0:14:11.160 --> 0:14:13.880 it's crazy how it evolves over like just the first 0:14:13.920 --> 0:14:17.200 couple episodes. I gotta see it. It's good. It's definitely 0:14:17.240 --> 0:14:20.760 worth seeing. Um what other kinds of noise. You've got 0:14:20.760 --> 0:14:24.840 industrial noise, which that's classified as kind of from the 0:14:24.880 --> 0:14:27.800 beginning of the process all the way to the end 0:14:27.840 --> 0:14:31.560 of any kind of industrial process, and that's basically called 0:14:31.600 --> 0:14:35.520 continuous noise. Uh, from you know, raw materials all the 0:14:35.560 --> 0:14:38.880 way to the to the end disposal of whatever byproducts 0:14:38.880 --> 0:14:41.000 can usually cause a lot of racket. Yeah. So like 0:14:41.040 --> 0:14:44.200 you know, like um, like a generator humming or something 0:14:44.240 --> 0:14:46.840 like that. There's not a lot of variation in intensity. 0:14:46.920 --> 0:14:52.720 It's basically this um or steam being released or even 0:14:52.760 --> 0:14:56.920 like a rhythmic like um, like a like something being 0:14:57.040 --> 0:15:00.880 like hammered, no, not hammered. That a difference that's called 0:15:00.920 --> 0:15:04.920 the impulsive noise. But um, just something that doesn't really vary. 0:15:04.960 --> 0:15:08.040 It's just kind of a monotonous sound. That's that's this 0:15:08.240 --> 0:15:11.160 kind of a subcategory called continuous sound. And it just 0:15:11.200 --> 0:15:17.280 so happens that most industrial processes are continuous in nature, right, 0:15:17.360 --> 0:15:20.320 whereas a train going by your house, or a plane 0:15:20.320 --> 0:15:23.920 flying or a car going by or a siren is intermittent. Yeah. 0:15:23.960 --> 0:15:26.280 And then also you could probably say, like if you 0:15:26.440 --> 0:15:30.680 held the trigger down on a backpack leafblower, um, which 0:15:30.720 --> 0:15:34.000 again is the worst thing that anyone's ever invented, but 0:15:34.080 --> 0:15:36.720 if you held it down, that would be a continuous 0:15:36.760 --> 0:15:39.280 sound for the whole time it was going. But no 0:15:39.360 --> 0:15:43.840 one does that ever. They just rev in this rhythmic 0:15:44.400 --> 0:15:48.320 pattern that your brain is just just giving. It's all 0:15:48.400 --> 0:15:51.480 to trying to try to find a pattern in. And 0:15:51.560 --> 0:15:54.240 so you get worn out and irritated so quickly because 0:15:54.240 --> 0:15:56.120 of those things, because they don't follow rhyme or reason. 0:15:56.360 --> 0:16:00.840 And in conjunction with that, it's an intermittent sound, so, 0:16:01.040 --> 0:16:02.800 which is, from what I can tell, one of the 0:16:02.800 --> 0:16:05.680 worst sounds for us. Right. And then you've also got 0:16:05.720 --> 0:16:09.080 community noise, which is just people noise. I think the 0:16:09.160 --> 0:16:14.720 leafblowers are thrown into that lawnmowers. Uh. You know, if 0:16:14.720 --> 0:16:18.320 you've got a festival in your neighborhood, or fireworks on 0:16:18.360 --> 0:16:20.600 the Fourth of July, or people playing their music in 0:16:20.640 --> 0:16:23.120 their cards and their houses. This is all just sort 0:16:23.160 --> 0:16:28.040 of people generated, generated community sound. So those are basically 0:16:28.080 --> 0:16:32.440 the three categories that I saw, industrial trafficking community. Should 0:16:32.440 --> 0:16:34.760 we take a break? I think we should. All right, 0:16:34.840 --> 0:16:37.040 We'll be right back. I'm gonna go quiet down that 0:16:37.120 --> 0:17:04.040 racket outside. I'll be right back. Okay, do you finish 0:17:04.080 --> 0:17:07.920 shaking your fist at those teenagers on your lawn. I'm 0:17:07.960 --> 0:17:10.560 lucky because we don't have loud We don't have one 0:17:10.560 --> 0:17:13.000 neighbor on one side, and our neighbor beside us is 0:17:13.000 --> 0:17:15.440 pretty quiet. But I do live near and I've talked 0:17:15.480 --> 0:17:19.399 about it before, a pretty main road, and you you 0:17:19.480 --> 0:17:21.359 kind of get used to it. But I also yearn 0:17:21.600 --> 0:17:24.320 you know, to be a few blocks in. But you know, 0:17:24.440 --> 0:17:26.480 you can't pick up your house and move it. So 0:17:26.520 --> 0:17:27.800 what are you gonna do? You get used to it? 0:17:28.160 --> 0:17:31.560 You can, but it's really expensive. Well, no, that is true. 0:17:31.600 --> 0:17:33.679 You can move a house sometimes. Didn't we do an 0:17:33.680 --> 0:17:36.560 episode on that once? How to Move a House? Yeah? 0:17:36.800 --> 0:17:38.679 I think I don't know if we did one just 0:17:38.760 --> 0:17:41.360 on that. It may been like historic districts or something. 0:17:41.400 --> 0:17:43.600 I don't know. And by the way, that episode we 0:17:43.600 --> 0:17:47.240 couldn't think of the other day was crumple zones. Oh boys, 0:17:47.240 --> 0:17:49.639 So we did do a whole episode on crumple zones. 0:17:49.920 --> 0:17:52.560 We did. Boy, we were scraping the bottom of the 0:17:52.560 --> 0:17:56.160 barrel there. But I remember that being an interesting episode though. 0:17:56.160 --> 0:17:59.040 It was totally interesting. Well that's the stuff you should know, way, 0:17:59.160 --> 0:18:02.280 isn't it, Chuck? Uh? It is? Indeed, should we talk 0:18:02.320 --> 0:18:06.400 about hearing damage? Yeah, So, like I was saying, there's 0:18:06.440 --> 0:18:08.879 that the kind of new type of hearing damage that 0:18:08.920 --> 0:18:11.840 we're wrapping our minds around. That is like the death 0:18:11.920 --> 0:18:14.879 of the neurons that are supposed to transmit the electrical 0:18:14.880 --> 0:18:18.480 impulse to the brain, and so we don't hear very well. 0:18:18.720 --> 0:18:21.760 Our our communication is garbled, and yet you can pass 0:18:21.960 --> 0:18:26.920 a traditional hearing tests no problem. Um. But other research 0:18:27.000 --> 0:18:32.560 is really starting to unfold, like less um less predictable 0:18:32.600 --> 0:18:36.160 ways that that noise and noise pollution actually affects our health. 0:18:36.200 --> 0:18:40.120 And it's like our entire system is negatively affected by 0:18:40.160 --> 0:18:44.399 noise and noise exposure. It is, and it it basically 0:18:44.560 --> 0:18:48.280 at the beginning of the whole process is triggering the 0:18:48.320 --> 0:18:51.960 same exact thing that triggers your fight or flight response. Uh, 0:18:52.000 --> 0:18:55.320 Like you're gonna have the same reaction to you know, 0:18:55.440 --> 0:18:58.920 if you hear uh a siren go by, the same 0:18:58.960 --> 0:19:01.480 thing is happening in your as far as your brain knows. 0:19:01.920 --> 0:19:04.960 Then what happens if like a bear walks up to 0:19:05.000 --> 0:19:09.400 you and roarers. Yeah, So, like our our hearing is 0:19:09.480 --> 0:19:13.560 always on and it's always on the lookout for, um, 0:19:13.880 --> 0:19:16.080 a potential threat. And one of the ways that a 0:19:16.119 --> 0:19:19.240 potential threat can give itself away is by making a sound. Right. 0:19:19.480 --> 0:19:21.680 It was, like I was saying earlier, Like we've been 0:19:21.680 --> 0:19:24.800 around waterfalls and the sound of waves in our evolutionary 0:19:24.880 --> 0:19:27.840 history for so long that basically it seems like when 0:19:27.840 --> 0:19:31.119 you're born, you come equipped with this. Don't worry about 0:19:31.119 --> 0:19:33.760 that sound. Actually you can be soothed by it. It's 0:19:33.800 --> 0:19:36.600 not something that should stimulate your fight or flight response. 0:19:37.000 --> 0:19:41.280 But we've lived around industrial machinery and the sound of 0:19:41.359 --> 0:19:45.320 a text message or a leaf blower, the stupid leaf 0:19:45.359 --> 0:19:49.000 blowers for such a little amount of our evolutionary history 0:19:49.040 --> 0:19:51.960 that our minds are not at all attuned to those 0:19:52.000 --> 0:19:56.480 things or um, we haven't kind of adopted this idea 0:19:56.520 --> 0:19:59.600 that a leafblower is non threatening and so it stimulates 0:19:59.640 --> 0:20:01.600 the fight flight response and is when we hear it. 0:20:02.760 --> 0:20:06.399 That's right, So you're gonna hear that sound, you're amygdala, 0:20:06.480 --> 0:20:11.040 which we've talked about plenty uh contributes to emotional processing, 0:20:11.160 --> 0:20:15.160 is going to send that same distress signal to the hypothalamus. Again, 0:20:15.600 --> 0:20:17.920 that gets if you are in a fight or flight response, 0:20:18.400 --> 0:20:20.600 which is why you probably want to run screaming if 0:20:20.640 --> 0:20:23.760 you here too many sirens, you're here too many leaf blowers, 0:20:24.600 --> 0:20:28.360 and then that's gonna signal your adrenal glands to get 0:20:28.400 --> 0:20:32.960 your adrenaline going. And I believe cortisol gets going as well. 0:20:33.920 --> 0:20:36.600 It's like literally mimicking fight or flight. Yeah, And so 0:20:36.640 --> 0:20:40.160 they figured out that like people who are continuously chronically 0:20:40.280 --> 0:20:42.800 exposed to sound, like say people who live like really 0:20:42.800 --> 0:20:46.080 close to an airport, really close to the subway tracks, 0:20:46.320 --> 0:20:51.040 or um, people who work in a really noisy factory, 0:20:51.080 --> 0:20:55.080 they have all sorts of crazy random health problems, like 0:20:55.320 --> 0:20:59.040 their kids sometimes have low birth weight. Obviously, they can 0:20:59.080 --> 0:21:04.960 develop tonitus um heart disease, obesity, diabetes, UH. There, their 0:21:05.040 --> 0:21:08.440 children who are exposed to to chronic noise can have 0:21:08.600 --> 0:21:12.600 UM cognitive impairments, um, high blood pressure, like all sorts 0:21:12.600 --> 0:21:15.880 of crazy stuff. And so you think, well, okay, that's 0:21:16.000 --> 0:21:19.240 that's like, that's terrible anybody who has to live near 0:21:19.280 --> 0:21:21.440 noise or work near noise, like we should do something 0:21:21.440 --> 0:21:24.160 about that. But it's even worse than that, Like, noise 0:21:24.160 --> 0:21:27.720 pollution is even more insidious than that, because you don't 0:21:27.760 --> 0:21:30.000 have to be chronically exposed to it. You don't have 0:21:30.080 --> 0:21:32.280 to live in a place where you're like, this is 0:21:32.320 --> 0:21:35.080 an objectively noisy place that I live or work in 0:21:35.560 --> 0:21:40.800 to still suffer from the effects of noise pollution. Yeah, 0:21:40.920 --> 0:21:43.040 I mean it can affect you when you're sleep because, 0:21:43.080 --> 0:21:44.840 like you said, your ears are always on. It's not 0:21:44.880 --> 0:21:46.960 like you go to sleep and the ears say, well, 0:21:46.960 --> 0:21:49.080 I'm gonna take a nice break. That would be a 0:21:49.119 --> 0:21:54.600 fantastic evolutionary addaptation. Actually, well, actually it would these days. 0:21:55.000 --> 0:21:58.680 It wouldn't be the mountains, the mountain lions, saber tooth 0:21:58.680 --> 0:22:01.000 tiger days. Yeah. Nice. If there was a switch and 0:22:01.040 --> 0:22:03.240 you could kind of control that, it would be so nice. 0:22:03.280 --> 0:22:06.760 I think the switches, the white noise wave machine is 0:22:06.880 --> 0:22:10.760 that switch, Yeah, which I've gotten addicted to such that 0:22:11.280 --> 0:22:14.080 I have to travel with him now. Yeah, everywhere I 0:22:14.119 --> 0:22:16.280 go I've heard that. Yeah. Basically, once you start, you 0:22:16.320 --> 0:22:18.439 can't go back. Yeah, I like it, though, I do. 0:22:18.520 --> 0:22:21.600 Brown noise is my drug of choice. It sounds so 0:22:21.680 --> 0:22:27.680 gross though brown. Yeah. I make a brown noise every morning, 0:22:27.720 --> 0:22:31.040 you know what I mean? Wow, I was not expecting 0:22:31.119 --> 0:22:34.719 danger Field to make an appearance. Well that's what you meant, right, 0:22:34.720 --> 0:22:37.240 poop or no? Yeah, I mean I guess anytime I 0:22:37.280 --> 0:22:41.160 hear brown, I think it's poop. You know, you think 0:22:41.160 --> 0:22:43.480 of that or you think of ween the band, did 0:22:43.480 --> 0:22:46.320 they have a brown song or album? They talk about 0:22:46.480 --> 0:22:50.199 the brown thing, the brown sound, and brown is just 0:22:50.240 --> 0:22:51.880 sort of their color and how they used to talk 0:22:51.880 --> 0:22:54.320 about sound. And I've heard other groups talk about brown sounds. 0:22:54.320 --> 0:22:57.199 So what does brown sound sound like? Well, brown noise, 0:22:57.320 --> 0:23:06.320 you know if white noises, brown noises o middle. Yeah, 0:23:06.320 --> 0:23:08.399 it's sort of a lower lower end. And if you 0:23:08.400 --> 0:23:10.720 actually play it through a speaker, like if you put 0:23:10.720 --> 0:23:12.360 it on your phone and play it through a little bluetooth, 0:23:12.640 --> 0:23:14.720 you can get some good base and it just it 0:23:14.760 --> 0:23:17.320 really works. Wonders for me. I should try brown noise 0:23:17.440 --> 0:23:20.719 or even white noise. I've been using um chrome noise 0:23:21.320 --> 0:23:24.119 where it's like, kid, do do do do do, And 0:23:24.200 --> 0:23:27.439