The human body is a truly amazing thing. From the way we breathe to the way we heal, there are so many things that our bodies do without us even thinking about them. In this article, we will cover 15 interesting facts about human body that will blow your mind.
Did you know that your stomach can digest food even before it reaches the stomach?
That’s right—when you eat something, your stomach starts breaking it down before it even gets there.
What happens is that when food enters your mouth and mixes with saliva, it begins to break down into smaller particles called chyme. Then these particles travel through your oesophagus into the stomach where they continue to be broken down by acids.
Another interesting fact is that there are millions of bacteria living inside you right now! They live at different places in your body depending on where they’re needed most (for example, there are more bacteria in your mouth than anywhere else).
These bacteria help keep you healthy by fighting off harmful germs and keeping your gut healthy.
They also help regulate your immune system and digestion by producing certain chemicals and vitamins needed for the growth and repair of tissues in those areas.
The human body is full of complexity and mysterious thing things. Let’s dive deep into these interesting facts about the human body.
15 Interesting Facts About Human Body
Fact #1: The human stomach can dissolve razor blades
Did you know that your stomach is capable of dissolving a razor blade?
That’s right! The human body is more capable than you think. In fact, acids are ranked on a scale from 0 to 14, with lower pH levels meaning stronger acids. Human stomach acid has a pH between 1.0 and 2.0—that’s incredibly strong compared to many other acids in nature.
In a study published in the journal Gastrointestinal Endoscopy, scientists found that after two hours of immersion in stomach acid, “the thickened back of a single-edged blade” dissolved completely.
Your eyes blink around 20 times a minute. That’s over ten million times a year.
It’s not just a way to keep your eyeballs moist; it’s also a way for your brain to take a break from looking at things!
When you’re staring at something, your eyes get tired, so they go into automatic mode and blink as fast as they can to give themselves a break. It literally feels like someone is gently tickling them!
When you see someone blinking quickly, they might be trying to tell you something: that they’re really tired or that they need help seeing something because their eyes are tired. It’s also possible they’re trying to send you some kind of message!
If someone is blinking rapidly without any obvious reason (like fatigue), it could mean they are lying or hiding something from you. For example, if someone tells you about how great their day was but then blinks rapidly when asked about an event in their life where everything went wrong—that could indicate that maybe things weren’t quite as great as they made them out to be!
Fact #3: Your ears never stop growing
Did you know your ears never stop growing?
You probably didn’t, because no one really talks about it. But that’s what we’re here for!
When you’re a kid, your ears just kind of hang out like they do in cartoons. But then they start to grow up and get more pointy, and then sometimes they get stuck in your hair or on the back of your neck and you have to adjust them all day long. It’s annoying!
But then—surprise!—they don’t stop growing. They just keep getting bigger and bigger, even after you’ve reached adulthood. And while this might seem like a good thing because now you can fit more toys into them when you go to sleep (true), it also means that eventually, they’ll be so big that they’ll start pressing against the sides of your head and making it hard for people to hear what’s coming out of your mouth when you talk (also true).
And then there’s this other thing: What if one day, without warning, everything stops? What if one day those two little holes on either side of your head just stop growing and are exactly where they need to be? That would mean something bad happened!
Fact #4: Earwax is actually a type of sweat
Earwax is actually a type of sweat!
But it’s not the kind of sweat you’re thinking of. It’s made up of oily secretions, dead skin cells, and bacteria that all work together to help keep your ear canal clean.
The oil in your earwax helps prevent water from evaporating out of your ears, which is important because if too much water evaporates out of your ear, it could lead to dryness and itching. The dead skin cells help trap dirt and dust so they don’t get lodged in your ears, and the bacteria help fight off any other bacteria that might try to invade your ear canal.
Fact #5: The tongue is covered in about 8,000 taste-buds
The tongue is covered in about 8,000 taste buds, each containing up to 100 cells helping you taste your food!
But what exactly do these taste buds do? The answer is: a lot! Taste buds help us detect sweet, salty, bitter, sour, and umami (savoury) flavours. They also help us identify the texture of our food—like whether it’s crunchy or soft.
What you may not know is that each taste bud has its own job. For example, one type of taste cell detects sweet things while another type detects saltiness. The number of cells within each taste bud varies depending on how sensitive they need to be to detect different flavours.
So next time you’re enjoying a bite of something delicious—or even something not-so-delicious—think about all those little cells working hard for you!
Fact #6: You produce about 40,000 litres of spit in your lifetime
You may not think about it much, but you produce about 40,000 litres of spit in your lifetime.
That’s right—your body is constantly making saliva and spitting it out! This may seem gross, but it’s actually a very important part of your health. Saliva helps your teeth stay clean by washing away food particles, and it also helps keep other parts of your body healthy by providing antibodies that fight off germs.
Saliva also keeps your mouth from drying out and cracking, which can cause pain and even infections. If you were to stop producing saliva altogether, you’d have sores in your mouth within 48 hours!
Fact #7: The average nose produces about a cupful of nasal mucus every day
It may seem like a lot, but the average nose produces about a cupful of nasal mucus every day.
This is because your nose is constantly cleaning itself out, so your body can breathe properly. The mucus traps dirt and germs, which helps keep your lungs healthy. If you have allergies, it can also help reduce inflammation in the respiratory system.
The mucus is produced by special cells called goblet cells that line the inside of your nose, but it’s not just made there—your whole body contributes! Every cell in your body has a nucleus (the part where DNA sits), and all those nuclei contain tiny amounts of proteins called alpha-2 glycoproteins. When those proteins get released into the bloodstream, they travel to the nose and get converted into mucus.
Fact #8: Do you know that your height changes throughout the day
Do you know that your height changes throughout the day? You’re not imagining it. It’s true!
You are about 1cm taller in the morning when you first get up than at night when you go to bed. This is because during the day the soft cartilage between your bones gets squashed and compressed.
So if you want to know how tall you really are, just measure yourself first thing in the morning and again before bed, and subtract those numbers from each other. That’s how many centimetres of height differences there are between being upright and lying down all day!
Fact #9: If you walked for 12 hours a day, it would take the average person 690 days to walk around the world
If you walked for 12 hours a day, it would take the average person 690 days to walk around the world.
If you’re planning on taking a trip around the globe but don’t have time to do it by plane or train, consider walking. According to the World Travel Guide, it would take an average person 690 days to walk around the world if he or she walked for 12 hours a day.
This doesn’t mean that you should stop using other forms of transportation (unless you really want to), but just in case you’re looking for ways to get from point A to point B without using fossil fuels, walking can be a great option!
Fact #10: The only muscle that never tires is the heart
When you’re out running and you feel like your legs are about to give out, it’s easy to forget that your heart is still working hard. It’s the only muscle in your body that never tires!
Your muscles are important for moving around and doing stuff, but they rely on oxygen to keep working. That means your heart has to work harder than any of the other muscles when you’re exercising. The good news is that this means your heart gets stronger over time, so if you’re looking for a new hobby, consider taking up running!
If you haven’t been feeling well lately or have been having trouble sleeping, there are lots of ways to help yourself get back into shape—like yoga or Pilates! These exercises won’t only help strengthen your heart; they’ll also help keep you healthy and happy!
Fact #11: The body has 2.5 million sweat pores
The body has 2.5 million sweat pores, and each of them can produce up to 0.5 litres of sweat per hour!
But you might be surprised to find out that it’s not just your palms and underarms that are affected by this unique biological process—it affects your whole body, including your face and scalp.
You’ve probably heard people say that sweating is a sign of exertion, heat, or nervousness, but why does it happen at all? While there are many theories as to why we sweat, researchers have yet to come to a consensus on what actually causes it. While some believe it’s a way for the body to cool itself down—the theory being that our bodies produce sweat when they become too hot—others believe the process is linked to our need for salt and water replenishment.
While we don’t know exactly why we sweat, we do know how important it is! So next time you feel yourself sweating when you’re upset or nervous (or even when you’re just sitting around in an air-conditioned room), remember: Your body is working hard for YOU!
Fact #12: Every minute you shed over 30,000 dead skin cells
Every minute, your skin is shedding over 30,000 dead skin cells.
That’s a lot of dead skin. And it’s no wonder—every day our bodies produce about 600,000 new cells. But what happens to all those old ones?
Well, they get pushed off your body and onto the ground.
This might seem gross, but it’s actually a good thing: when you shed old skin cells, new ones grow in their place. This process is called exfoliation, and it helps keep your skin looking young and healthy.
Fact #13: If you live to age 70, your heart will have beat around 2.5 billion times!
You’re probably thinking: “2.5 billion times? That’s a lot of heartbeats!”
But when you think about it, 2.5 billion is nothing.
For example, your heart will beat around 2.5 billion times before you even hit age 70. That’s just the amount of time you have to wait until then!
Or put another way, if you live until age 70 and your heart beats once every second, then it will have beat around 2.5 billion times by the time you reach that milestone.
You might be wondering what happens if you live beyond 70 years old, but don’t worry—your heart will still keep going for a long time after that too! It’s estimated that your heart will beat around 1 trillion times over the course of your lifetime (that’s 10 raised to the 12th power).
Fact #14: You fart enough in one day to fill a party balloon
On average, you fart enough in one day to fill a party balloon.
That’s right—you’re probably producing enough gas to fill an actual balloon. And if you think about it, that’s kind of a lot of gas (and more than you probably want to be packing around with your co-workers).
So how much do we actually fart? According to one study, the average person produces half a litre of flatus per day. That’s about 1/2 cup—so in one year alone, you can fill up over 60 party balloons with your farts!
Fact #15: We wee enough wee every month to fill a bath!
We wee enough wee every month to fill a bath!
You read that right. We pee enough each month to fill a bathtub. And we’re not alone: the average person pees about 4,000 litres of urine in their lifetime. That’s a lot of water—and a lot of waste—to be sent down the drain!
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How many of these interesting facts about human body did you already know?