Why Do We Have Snot? (MIT Explains) - By MITK12Videos
Transcript
| 00:02 | society hold . We are the most complex technology on | |
| 00:11 | the planet . Our bodies hold by thousands of years | |
| 00:15 | of evolution . Our brains capable of billions of calculations | |
| 00:20 | per second opposition on the food chain . The top | |
| 00:26 | we are humans bow down before our physiological majesty , | |
| 00:33 | pierre us . Okay , so this might be our | |
| 00:38 | weak point . Or is it I mean ? Yeah | |
| 00:43 | , mucus is the stuff that uses out of us | |
| 00:45 | when we're sick , but it's also one important defense | |
| 00:48 | mechanism . Our body sets up to protect us . | |
| 00:50 | She would know so mucus , which is the stuff | |
| 00:54 | that we call . It's not actually everywhere like it's | |
| 00:56 | human motor oil , it's not just in your nose | |
| 00:58 | , it's on your eyes and your throat , long | |
| 01:01 | stomach intestines . Lady parts , good parts . In | |
| 01:05 | fact the stuff that makes up mucus is between almost | |
| 01:07 | every single cell in your body and it's so important | |
| 01:10 | that you make a gallon of it every day and | |
| 01:13 | all this mucus protects you in a ton of different | |
| 01:16 | ways . The first way is by moisturizing . See | |
| 01:19 | mucus is a mesh work made up of these proteins | |
| 01:22 | with all these long sugars branching off of it . | |
| 01:24 | And this combo is called a musician and it combined | |
| 01:27 | two and retain an insane amount of water . Big | |
| 01:31 | deal . Right ? Well , it is a big | |
| 01:33 | deal . Without that moisture , you wouldn't be able | |
| 01:35 | to eat without ripping up your esophagus . Your eyes | |
| 01:38 | would dry out and you wouldn't be able to blink | |
| 01:40 | and your airways lungs and throat wouldn't be able to | |
| 01:42 | trap particles and get rid of them . Which brings | |
| 01:44 | me to way number two , your body constantly secretes | |
| 01:49 | mucus when your eyes tear up or you blow your | |
| 01:52 | nose or you cough or you swallow your post nasal | |
| 01:55 | drip or you go to the bathroom by trapping unwanted | |
| 02:00 | particles . This mucus system is like a car wash | |
| 02:03 | that's constantly flushing out . Germs before they have a | |
| 02:05 | chance to take hold mm Thank you . So this | |
| 02:13 | is fakes not made out of corn syrup , gelatin | |
| 02:16 | and water and it's disgustingly convincing and would do a | |
| 02:19 | decent job at moisturizing and protecting against particles . But | |
| 02:23 | real mucus is loaded with immune cells that fight bacteria | |
| 02:26 | and viruses and the chemical structure of musicians keeps bacteria | |
| 02:30 | moving by giving them handholds to propel themselves on . | |
| 02:34 | If bacteria stop moving , they could clump together to | |
| 02:37 | form biofilms which even the toughest antibiotics can't always kill | |
| 02:42 | . Researchers are trying to learn from our own bodies | |
| 02:46 | natural defenses to understand and fight infections . In fact | |
| 02:50 | studying mucus could help us with a lot of different | |
| 02:52 | things , antibiotic resistance cavities and our teeth , respiratory | |
| 02:56 | disease , even preterm labor . My research group is | |
| 02:59 | trying to see if we can use mucus to predict | |
| 03:02 | if a woman is at risk of delivering a baby | |
| 03:05 | too early and mucus doesn't just sit there , it | |
| 03:09 | changes and adapts to its environment . For example , | |
| 03:12 | cervical mucus now you ladies don't want random stuff getting | |
| 03:15 | in your uterus and mucus helps protect against germs . | |
| 03:18 | But when a woman wants to have a baby that | |
| 03:21 | mucus has to somehow let sperm through and it does | |
| 03:24 | when she violates it physically and biologically changes to let | |
| 03:28 | that happen . And when mucus does let stuff like | |
| 03:31 | good bacteria or sperm or certain particles through it doesn't | |
| 03:35 | get ripped up but instead restores its original mechanical property | |
| 03:39 | and self heals . Which is something that's so crazy | |
| 03:42 | that not a single man made material can do nearly | |
| 03:45 | as well or as easily . So see we are | |
| 03:49 | majestic specimens of life on earth . We are humans | |
| 03:53 | bow down before us , Hear us ! You okay | |
| 04:01 | ? Hey guys , it's Elizabeth . Thanks for watching | |
| 04:02 | this episode of Science at loud . If you liked | |
| 04:05 | it , check out some of our other videos and | |
| 04:06 | subscribe to our channel . And if you want to | |
| 04:08 | learn more about the awesome science of snot , go | |
| 04:11 | to our website at k 12 videos dot m i | |
| 04:13 | t dot e d u God ! Oh , cut | |
| 00:0-1 | ! |
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