20 Shocking and Amazing facts about the Human Body.


Your body truly is a wonderland. A weird, miraculous, disgusting, wonderland. Learn all about it with these interesting human body facts. 

Ever wondered how many times a minute a baby blinks? Or why do babies have more bones than adults? Or how big your brain is without all those wrinkles?

Or how long your intestines would be if you stretched them out?

Well, now you can find all of these things out from the comfort of your own home while keeping all of your internal organs safely internal. 

The Human Body

The human body is made up of different types of cells, tissues, organs, and other biological systems, which are involved in carrying out different types of specific functions essential for maintaining a healthy life.

The scientific study of the body’s structures along with its functions is termed Human anatomy and physiology.

Besides these structures and functions, there are numerous amazing facts about our body that we are all not aware of. 

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The Human body is perhaps the most complex composition ever to have existed.

Jeff Foster, Medical Director of U.K.-based healthcare provider H3 Health, suggests many of us “take our bodies for granted.”

“It is only when we spend the time looking at what is involved in what makes us human that we realize how amazing our bodies are,” he told Newsweek.

Your body is a beautiful thing! There are so many exciting and weird body facts about them that it will truly blow your mind. Intrigued? Want to know more about weird facts about the human body?

“This was something I started to learn about in med school, but 20 years on I am still finding out new, weird and amazing things about the body.”

Many of the most exciting discoveries in all fields of science are being played out in the human body. 


Some Minor Facts

  1. Your mouth produces about one liter of saliva each day!
  2. Your brain is sometimes more active when you’re asleep than when you’re awake. Human body brain
  3. Laid end to end, an adult’s blood vessels could circle Earth’s equator four times!
  4. The word “muscle” comes from the Latin term meaning “little mouse“, which is what Ancient Romans thought flexed bicep muscles resembled. Human body muscle
  5. Bodies give off a tiny amount of light that’s too weak for the eye to see.

  6. The average person has 67 different species of bacteria in their belly button.
  7. You lose about 4 kg of skin cells every year!
  8. Babies don’t shed tears until they’re at least one month old. Human body tears
  9. Information zooms along nerves at about 400kmph!

It’s Getting Real

  1. The human heart beats more than three billion times in an average lifespan
  2. Your left lung is about 10 percent smaller than your right one.
  3. Human teeth are just as strong as shark teeth.

  4. Scientists estimate that the nose can recognize a trillion different scents! Human body nose
  5. Humans are the only species known to blush.
  6. Your blood makes up about eight percent of your body weight.


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Fact One

Every living organism is composed of a cell. Among these, a few are single-celled organisms, which includes bacteria and some are multicellular as they are composed of many cells, including humans, plants, animals, and birds.

Fact Two

Our appetite depends on our style of breathing. Slow breaths help in increasing our lifespan. It is always advised to breathe through our nose to avoid infections, tonsillitis, sore throats, and other disorders.

Fact Three

Embryos develop fingerprints three months after conception. Between birth and death, the human body goes from having 300 bones to just 206.

Fact Four 

All humans are born with a diving reflex, which can shut bodily functions. This gets activated when one drowns or is submerged in the water.

Fact Five

Goose Pimples are a remnant of our evolutionary predecessors. They occur when tiny muscles around the base of each hair tense, pulling the hair more erect.

With a decent covering of fur, this would fluff up the coat, getting more air into it, and making it a better insulator. But with a human’s thin body hair, it just makes our skin look strange.

Similarly, we get the bristling feeling of our hair standing on end when we are scared or experience an emotive memory. Many mammals fluff up their fur when threatened, to look bigger and so more dangerous. 

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Fact Six

In Atomic Collapse, the atoms that make up your body are mostly space, so despite there being so many of them, without that space, you would compress into a tiny volume.

The nucleus that makes up the vast bulk of the matter in an atom is so much smaller than the whole structure that it is comparable to the size of a fly in a cathedral.

If you lost all your empty atomic space, your body would fit into a cube less than 1/500th of a centimeter on each side. 

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Five Seven

The longest cell in the Human body is the motor neuron, the feminine egg is the largest cell and the smallest cell is the male sperm cell.

The longest bone is the thigh bone and the stapes or stirrup present in the middle ear is the smallest bone. The hardest bone is the jawbone.

Skin is the largest organ and the pineal gland is the smallest organ in our body. The human tongue is the strongest muscle and the external muscles of the eye are the fastest they are mainly involved in constantly moving, blinking, and adjusting the positions of the eye.


Fact Eight

Human eyes and ears never stop growing because they are mainly composed of cartilage cells, which keep on dividing along with age.

Human teeth are just as strong as shark teeth and about 99% of the total calcium content in the body is present in the teeth


Fact Nine

When you see blood oozing from a cut on your finger, you might assume that it is red because of the iron in it, rather than just having a reddish hue. But the presence of the iron is a coincidence.

The red color arises because the iron is bound in a ring of atoms in hemoglobin called porphyrin and it’s the shape of this structure that produces the color.

Just how red your hemoglobin depends on whether there is oxygen bound to it. When there is oxygen present, it changes the shape of the porphyrin, giving the red blood cells a more vivid shade.


Fact Ten

Not all the useful DNA in your chromosomes comes from your evolutionary ancestors – some of it was borrowed from elsewhere. Your DNA includes the genes from at least eight retroviruses.

These are a kind of virus that makes use of the cell’s mechanisms for coding DNA to take over a cell. At some point in human history, these genes became incorporated into human DNA.

These viral genes in DNA now perform important functions in human reproduction, yet they are entirely alien to our genetic ancestry.


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Fact Eleven

On the sheer count of cells, there is more bacterial life inside you than in humans. There are around 10tn of your cells, but 10 times more bacteria.

Many of the bacteria that call you home are friendly in the sense that they don’t do any harm. Some are beneficial.

In the 1920s, an American engineer investigated whether animals could live without bacteria, hoping that a bacteria-free world would be a healthier one.

James “Art” Reyniers made it his life’s work to produce environments where animals could be raised bacteria-free. And the results were clear. 

Fact Twelve

Your eyes are very sensitive, and able to detect just a few photons of light. If you take a look on a very clear night at the constellation of Andromeda, a little fuzzy patch of light is just visible with the naked eye.

If you can make out that tiny blob, you are seeing as far as is humanly possible without technology.

Andromeda is the nearest large galaxy to our own Milky Way. But “near” is a relative term in intergalactic space – the Andromeda galaxy is 2.5m light years away. 

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Fact Thirteen

Your real age, just like a chicken, your life started with an egg. Not a chunky thing in a shell, but an egg nonetheless.

However, there is a significant difference between a human egg and a chicken egg that has a surprising effect on your age. Human eggs are tiny.

They are, after all, just a single cell and are typically around 0.2mm across – about the size of a printed full stop. Your egg was formed in your mother – but the surprising thing is that it was formed when she was an embryo.

The formation of your egg, and the half of your DNA that came from your mother, could be considered the very first moment of your existence.


Fact Fourteen

The complete lifespan of a single hair follicle is about 3 to 7 years. The dark color of hair helps in finding the density and the total number of hair follicles in our head.

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Take a look around you: the world is full of scientific marvels. From the atomic building blocks of life to the deepest depths of outer space, there are a lot of things to awe over. Add your body to the list.

Yes, the human body is truly an incredible specimen


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