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Finally! An Explanation For All the Sounds Your Body Makes

Sometimes, when your stomach rumbles so loudly that everyone hears, or you accidentally fart in front of your crush, you may wonder why your body betrayed you in such a colossal way.  

Well, as it turns out, there’s actually a scientific reason for all the noises your body makes according to‘s findings.

It is only fair that we start with the least pleasing of them, and the worst culprit.

1. Farting

That sound that comes out of your bum, and which can be as loud as an elephant’s trumpet or as quiet as a whisper. This sound is most often accompanied by a rank smell.

Farts are a natural result of your body digesting food. When you eat, you swallow air along with your food, and while your digestive system converts your food into nutrients, it produces a gas called hydrogen sulphide (the smelly kind of gas). Your body has to get rid of all that gas — hence, farting.

2. Belching

An uncontrollable burst of air from your mouth that can be as quick as  a clap, or long and disgustingly so!

Burping is another way for your body to get rid of all that air you swallow. Basically, the air you have swallowed travels back up and is expelled through your mouth. It’s basically farting….only from the other side, and the fact that it doesn’t smell (well, except you are constipated)!

3. Growling Tummy

The rumbling sound your stomach makes alerts you (and anyone in your immediate vicinity) that you are starving.

In order for your body to propel food through your digestive system (also known as peristalsis), the muscles in your stomach and intestines are constantly contracting to push your food downward. The rumbling sound you hear in your stomach is all the gas, liquid, and broken down food being sloshed around by this process.

You might be surprised to know your stomach is actually rumbling all day. So why do you notice it most when you are hungry? About two hours after your stomach empties itself, it produces hormones that sends a message to your brain to signal your digestive muscles to start the peristalsis process again, which makes you feel hungry. The reason you can hear the rumbling more when your intestines are empty is because there’s no food there to muffle the sound.

4. Cracking Joints

 The pop that emits from your joints when you stretch. It’s a wildly satisfying feeling for the person who’s cracking their knuckles or back.


There’s a liquid called synovial fluid that acts as a lubricant between your joints and the fluid has all types of gases in it – like oxygen, nitrogen, and carbon dioxide. When you crack a joint, you stretch the joint capsule and the gas in the synovial fluid is rapidly released. The pop you hear is that gas being released.

That’s why when you try to crack your knuckles again shortly after you cracked them before, it doesn’t pop. It’s because the gas hasn’t hasn’t had time to dissolve back into the synovial fluid yet.

5. Sneezing

They can range from short, clipped hisses to explosive shrieks depending on who you are.

Sneezing is caused by the irritation to the mucus membranes of the nose or throat. When an irritant enters your nose, it sets off the sneeze centre in your brain. Signals are sent to tightly close your throat, eyes, and mouth, then your chest muscles contract, before your throat muscles rapidly relax. As result of this process, air, saliva and mucus are forced out of your mouth and nose (hopefully along with the thing that originally irritated your nose). 

6. Hiccups 

Hiccups are caused when your diaphragm (the thin, fleshy dome-shaped muscle at the bottom of your chest) becomes irritated. Usually, when you inhale, your diaphragm pulls down to help pull air into your lungs, then it relaxes as you exhale, letting air flow back out.

But when the diaphragm becomes irritated (by things like eating too much, or simply feeling nervous), it can start pulling down in a jerky, unpredictable way, which makes you suck air into your throat suddenly. The air rushing in hits your voice box, causing your vocal cords to close suddenly. That’s what produces that hic sound.

7. Queefing

A fart… but from the vagina.

Since the vagina has folds inside it called rugae, air can often get trapped within it. Queefing happens when the air trapped within the vagina is displaced. It can happen anytime and is totally normal. 

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