8 Facts About the Human Body That You Won’t Believe Are True

Morgan Culton, Staff Writer

For as complex as the human body is, it is amazing that it can be created in just nine short months. Here are eight crazy things that will blow your mind about the human body.


1. The average person produces about a liter of saliva a day. In a lifetime, the average person will have produced about 7,232 gallons of saliva (Natgeokids.com).

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2. About 7-8% of your body weight is the weight of your blood (Natgeokids.com). An average adult that weighs 150-180 pounds will have around one and a half gallons of blood in his or her body (Wonderopolis.org).

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3. Sweat is actually odorless. It is instead the bacteria on your skin that produce the smell when they interact with the lipids secreted from your apocrine glands (Popsci.com).

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4. It is estimated that the human brain can store 2.5 petabytes of information. A petabyte is equivalent to 1 million gigabytes or 1000 terabytes. For comparison, all of the print sources at the U.S. Library of Congress equates to about 10 terabytes of information (Listosaur.com).

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5. There are 10 times more bacteria in your body than human cells. Collectively, the bacteria in an average person’s body weighs about 4 pounds (Nih.gov).

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6. In the time it took you to finish reading this sentence, about 50,000 cells in your body died and were replaced with new ones (Brightside.me).

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7. There is about 6 feet of DNA coiled inside of each human cell. This means that there is about 10 billion miles of DNA in your body, enough to go to Pluto and back (Kqed.org).

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8. The average person’s eyes will be closed for about 10% of the time he or she is awake due to blinking (Factslides.com).

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