Human Body

Fascinating facts about our own biology, from quirky reflexes to surprising capabilities.

Did You Know?

The human brain processes images in as little as 13 milliseconds.

This incredible processing speed allows us to rapidly assess our environment and respond to potential threats. The brain...

Read more: The human brain processes images in as little as 13 milliseconds.

Did You Know?

Your body produces over 200 billion red blood cells every day.

This massive production occurs in the bone marrow and is necessary to replace aging red blood cells, which...

Read more: Your body produces over 200 billion red blood cells every day.

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Your body position affects your memory and emotions.

Research shows that your physical posture can influence how you process information and feel emotions. Standing tall can...

Read more: Your body position affects your memory and emotions.

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The human body contains enough DNA to stretch from Pluto to the Sun and back 17 times.

If you were to uncoil all the DNA in all your body's cells and line it up, it...

Read more: The human body contains enough DNA to stretch from Pluto to the Sun and back 17 times.

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The human heart creates enough energy each day to drive a truck for 20 miles.

In a single day, the heart produces enough energy to drive a truck for 20 miles. This continuous...

Read more: The human heart creates enough energy each day to drive a truck for 20 miles.

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Your brain processes 11 million bits of information every second but you’re only aware of 40.

The human brain receives an enormous amount of sensory input, but consciousness only accounts for a tiny fraction...

Read more: Your brain processes 11 million bits of information every second but you’re only aware of 40.

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Human teeth are covered in the hardest substance in the body.

Tooth enamel is the hardest substance produced by the human body, even harder than bone. It's composed of...

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The human body contains enough carbon to make 900 pencils.

The body is approximately 18% carbon by weight, which is a primary component of all organic molecules. This...

Read more: The human body contains enough carbon to make 900 pencils.

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Your fingernails grow four times faster than your toenails.

This difference in growth rate is due to increased blood flow and more frequent usage of fingers compared...

Read more: Your fingernails grow four times faster than your toenails.