Facts About Human Body - 167 Interesting & Fascinating Facts

The Human body is an incredible thing and it is one of the wonderful creations of God. The amazing facts about the human body listed in this article will help you understand and cherish your body.

We crush food into pieces with our teeth, visualize with our eyes, breathe in oxygen and breathe out carbon dioxide with our nose, taste food with tongue, think with our brain, listen with our ears, sense with our skin and each organ has its own unique way to support and coordinate with the Human Body and these are very minor of the things that your body supports your every second.

In this article, we have detailed 167 interesting facts about the human body that would completely make you blessed to have taken life as a human being.

The human body is an astonishing piece of machinery, below are some amazing facts about the human body,

The Human Brain comprises about 60% of fat and it is one of the organs of the Human Body that consists of too much fat!
The Human Brain consumes of 20% of the total oxygen produced
Did You Know? 250,000 per minute is the rate at which the neurons develop during pregnancy!
Human Brain can survive for 5 to 6 minutes without oxygen supply
Our Human Brain weights 3 pounds – With only so much weight it does think so much!
73% of the Human Brain is Water
At the age of 2 years, the human brain is about 80% of the adult size! [7]

It is estimated that there are about 100 billion (100,000,000,000) neurons or nerve cells in the human brain. [8]
With our eyes, we actually see things upside down and our brain turns the image the correct way up
Did you know? In the space, the astronauts cannot cry due to the lack of gravitational force!
Human Eyes on average blink about 4,200,000 times a year.
We cannot open our eyes when we sneeze
When we look at someone that we are attracted to, our pupils of eyes expand up to 45%.
The Human Eye can detect 10 Million varieties of colours!
Red Eye in images is due to the dilation of tiny blood vessels in the human eye.
Muscles responsible for controlling eyes are the most active muscles in the entire human body.
Babies are born colour blind, always!
A human eyeball weighs 7.5 grams
There are 0 blood vessels present in the cornea, it is the only living tissue in the human body without blood vessels
Human ears can help us listen to frequencies as low as 20 Hertz (Hz) and up to 20,000Hz.
Our ears function even when we are asleep!
Human Ears doesn’t require cleaning, they are self-cleaning!
Diabetes can be detected through eye exams
If one of our eyes was a digital camera, it would be 576 megapixels a digital camera
Human Eye scratches heal naturally and quickly, usually within 48 hours unless there is an infection.

Hope you enjoyed knowing above 25 interesting facts about the human body!

Human Eyes are the second most complex part of your human body!
Brown is the world’s most common eye colour
We generally read 25% slower on screen than on paper
80% of human eye vision impairments that occur worldwide are curable
As we age older, we produce lesser tears
Almost half of the human brain is dedicated to the vision
In an average lifetime, our eyes will see about 24 million different images.
Eye transplants are highly impossible due to the sensitivity of the optic nerve.
Our eyes are positioned in a hollowed eye socket, to protect the eye.
Human eyes contain around 107 million light-sensitive cells
Did you know? Human eyes are made up of over 2 million working parts.
In the inner ear, the sound waves are transformed into a liquid medium
We are sure you don’t know this! Sailors believe that piercing one ear will improve their vision.
Stapes is the smallest bone in the human body and is found in the ear
The Human ear helps you to feel the effects of gravity and acceleration and also helps in keeping your balance.
On average, there are about 1 Lakh to 1.5 Lakhs of hair strands on a human head.
Bone marrow is the 1st fastest growing tissue and 2nd fastest growing tissue in the human body. This is one of the most interesting facts about bones in the human body.
4% of the total world population naturally have red hairs.
Did You Know? If the diameter of the copper wire and hair strand is the same, copper wire is weaker than a hair strand.
The average lifespan of Hair is around 5 years.
Human Hair can absorb oil from water.
Every single hair strand on the human body has its own nerve, blood supply and muscle.
The average lifespan of an eyelash is 150 days.
On average, women’s hair is half the diameter of men’s hair.
Human Hair can expand up to 30% of its original length when it’s wet.

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On average, hair grows about 0.3 to 0.5 mm per day and 1.25 centimetres or 0.5 inches per month
Human hairs regrow up to 20 times in a lifetime.
Nails in the hands have a faster growth rate compared to nails in the feet.
The habit of nail-biting is known as onychophagia.
The nail on the middle finger has the fastest growth rate while the nail on the thumb has slowest growth rate.
If you don’t know, nails grow at a faster rate in men and a slower rate in women.
Nails grow faster in summers and slower In winters.
Lung Diseases makes nails look blueish.
Did you know? Male and Female skulls are different. Males tend to be heavier and larger Skulls, while the females tend to have thicker skulls.
Frowning makes use of 11 muscles, and smiling makes use of 12 muscles.
We Humans can make 10,000 unique facial expressions – Try to take pics of each unique facial expression and share it with hashtag #SmartDailyJournal today!
The human face is made up of 14 bones
As we grow older, our nose lengthens and moves downwards.
Nails and Lips, Never sweat!
Like, Human fingerprints – lips are also unique
Lips are one of the most sensitive parts in the human body, they have almost a million nerve endings.
As we grow older, our lips become thin.
The average person’s every eyebrow has about 250 hairs.
The average lifespan of an eyebrow is four months.
Most of us lose on average one to five eyelashes daily.
Only mammals like Human beings have eyelashes
The upper eyelid lashes are usually twice i.e 200 to 300 in number than the lower lid i.e 100
The average length of the eyelash is about one centimetre
Tooth enamel is the hardest in the human body.
When we are young we laugh around 400 times a day and as we become older we laugh just about 15 times a day.
Did you know? Like human fingerprints, the tongue prints are also unique

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Right-handed individuals chew food on the right side and Left-Handed individuals chew food on the left side.
On an average beard grows 5.5 inches a year
The world’s longest beard is as long as 17 feet 6 inches
Beards grow quicker in the daytime
The human stomach produces highly concentrated hydrochloric acid which can dissolve even metals.
Did you know? The human stomach produces about 3 litres of hydrochloric acid in a single day
The human stomach can be filled up to half a gallon of food or water.
Human lungs can float on water!
Human lungs help us eliminate seventy percent of waste simply by breathing.
Men have a lower breathing rate than children and women
Our lungs are not symmetrical. The right lung is slightly larger than the left lung!
Did you know? We can lead a healthy life even with a single lung.
On average an adult takes 16 breaths every minute
Without mucus, Human lungs would dry up and result in dehydration, eventually leading to death.
Babies are born with 300 number of bones
The longest bone in the human body is the femur and is present in the legs
There are 206 bones in Human Body and about 106 in hands and feet. [92]
The biggest joint in the human body is the knees!
Human teeth are stronger than the bones
There are 33 bones in the human spine
If the human body has a deficit in calcium, it takes from the bones!
The most mobile joint in the human body is the Ball and socket joint.
Gluteus maximus is the largest muscle in the human body
Muscles make up 35% to 40% of the human body
There are about 120 muscles in the spine

Hope you enjoyed knowing 100 interesting facts about human body!

Human Skull is made up of 29 bones
Human heartbeats 100,000 times a day
The human heart of an average man beats approximately 70 times a minute and a woman’s heart beats approximately 78 times a minute.
75 trillion cells in the human body receive blood from the heart
The human heart pumps 1.5 gallons of blood per minute around the body
Music can change the heartbeats
The sound of the heartbeat is made by the four valves of the heart closing
Did you know? The average person produces about 32 ounces of saliva every day.
The most interesting fact about the human body, our body can move food through the digestive system even when we stand upside down. The gravitational force has no impact on our food movement!
The small intestine is about 22 to 23 feet long
Hiccups happen due to sudden change in temperature.
60% of the human body is made up of water
Human teeth consist of 99% of the total calcium in the human body
When you measure your height in the morning and in the evening, you will find that you will be taller in the morning and shorter in the evening. This is because the cartilage in our bones compresses during the day.
Human body skin weighs about 15% of the total body weight.
Human skin of an average covers an area of about 2 square meters.
We have thickest skin on feet and thinnest skin on eyelids.
Human skin renews itself every 28 days
Did you know? Human skin sheds about 30,000 to 40,000 cells every minute.
Human body fluid balance depends on the skin.
Skin is the first largest organ and Liver is the second largest organ in the human body
The liver holds 10% of the total blood in the human body
The liver is the only organ that has the ability to regrow [123]
The spleen helps in filtering the blood
About 12% of the human population have gallstones and only a few suffer from complications.

Hope you enjoyed reading the 125 amazing human body facts.

Human body temperature is lowest in the morning and highest in the morning
Human nose and sinuses produce about 1 litre of mucus every day. [127]
We don’t sneeze during sleeping, that’s because the nerves responsible for the same are sleeping as well. [128]
Did you know? The smell is the only sense organ that is directly connected to the region of the brain where memories are formed and emotions are processed. [129]
Women have a 50% larger region for sensing and processing the smell [130]
Kidney filters about 45 gallons of blood in the human body every day!
Drinking too much water is very bad for kidneys.
Diabetes is caused due to damage to the pancreas.
The pituitary gland is the master gland of the human body.
The thyroid gland is regulated by the pituitary gland.
With every breath intake, the human body rib cage expands by 3 to 5 cm.
55% of the blood volume is Plasma and it consists of 90 percent water.
The lifespan of Red blood cells is about 120 days in the circulatory system.
Did you know? Human blood has no substitute.
There is only one cup of blood in a newborn baby body.
7% of the total body weight is blood.
The frozen plasma of blood can be stored for one year.
The frozen platelets of blood can be stored for 5 days.
The reason for back pain originates from the glutes and it can be resolved by strengthening the glutes muscles. [144]
Women have bigger butts than men
Kidneys have the highest flow of blood.
Did you know? Healthy lungs are pink in colour!
The normal and average tongue of the human has close to 3000 to 4000 taste buds.
The human brain operates on the same amount of power as a 10-watt light bulb.
The human brain is more active during the night than during the day time.

We are done with 150 fascinating and amazing human body facts and trivia. Don’t forget to share this article with your friends and family!

The human body produces enough heat in 30 minutes that can make the half-gallon of water boil.
Did you try to tickle yourself? Well, it’s not possible to tickle yourself.
Only Humans can produce emotional tears.
O group is the most common type of blood group in the world.
A tooth cannot repair itself!
The jaw bone is the largest bone in the human body
The tongue is the strongest bone in the human body
Nails and Hair cannot grow after our death.
Human Nose can remember 50,000 different varieties of odours.
Did you hear too much? Well, then your hearing would not be very sharp now!
The colour of the eyes in a newborn baby is blue.
Female egg is the largest cell in the human body.
Males blink 2x times lesser than the females.
Liver performed 500 functions in the Human Body according to scientists.
The stomach lining is generated every 3 to 4 days once.
An average person loses about 60 to 100 stands in a day!
If the beard remains unshaved for a lifetime then it would grow up to 30 feet.

Facts About Human Body – 167 Interesting & Fascinating Facts