17 Fascinating Things You Didn’t Know About Your Body
The human body is full of surprises. From how it repairs itself to the amazing things it can endure, there’s so much to learn. Here are 17 facts that will leave you amazed.
1. Brain Power
The human brain is made up of about 86 billion neurons, each forming connections to other neurons, which can add up to more than 100 trillion connections.
2. Heart Work
The human heart beats around 100,000 times a day, pumping approximately 7,570 liters (2,000 gallons) of blood through a vast network of vessels.
3. Lung Capacity
An average person’s lungs can hold about 6 liters of air, and we breathe around 11,000 liters of air daily.
4. Cellular Complexity
The human body consists of about 37.2 trillion cells, each with its unique function and structure.
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5. Skin Deep
Skin is the body’s largest organ, accounting for about 15% of our body weight. An average adult has approximately 1.9 square meters of skin.
6. Microbial Partners
Our bodies are home to trillions of microbes. In fact, microbial cells in our body outnumber our human cells.
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7. Bone Strength
A block of bone the size of a matchbox can support up to 9 tonnes of weight – four times as much as concrete can support.
8. Unique Fingerprints
Each person’s set of fingerprints is unique, and even identical twins have different fingerprints.
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9. Rapid Eye Movement
In a single day, our eyes make over 200,000 movements.
10. Superhuman Strength
In times of extreme stress or adrenaline, our bodies can perform feats of strength, known as ‘hysterical strength’, which is normally impossible.
11. Stomach Renewal
The stomach lining completely regenerates itself every 4 to 5 days to prevent digestion of the stomach by its acidic environment.
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12. Blood Travel
In a day, your blood travels around 19,312 kilometers (12,000 miles), which is nearly half the circumference of Earth.
13. Corneal Healing
The cornea of the eye is the only part of the body with no blood supply; it gets oxygen directly from the air. It’s also one of the fastest healing parts of the body.
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14. Ear and Nose Growth
Unlike most of our body, our ears and nose continue to grow throughout our lives.
15. DNA Length
If unwound and linked together, the strands of DNA in one person’s body would stretch from the Earth to the sun and back over 300 times.
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16. Water Composition
About 60% of the human adult body is made of water. This percentage is even higher in infants.
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17. Memory Capacity
The storage capacity of the human brain is estimated to be around 2.5 petabytes (or a million gigabytes). For context, if your brain worked like a digital video recorder in a television, 2.5 petabytes would be enough to hold three million hours of TV shows.
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