Interesting Facts About the Human Body

The acid in your stomach is strong enough to dissolve razorblades.
The human body is estimated to have 60,000 miles of blood vessels.
Humans lose an average of 40 to 100 strands of hair a day.
Women’s hair is about half the diameter of men’s hair.
The lifespan of a human hair is 3 to 7 years on average.
Every inch of the skin, there are about 32 million bacterias.
300 billion new cells are produced every day. 300 million old cells die every minute.
The tooth is the only part of the human body that can’t repair itself.
On average, your kidneys will filter around 1.3 liters of blood every minute.
Men produce around 10 million sperm per day.
On average, a woman’s body produces about 1/2 a million eggs.
On average, an individual grows over 450 miles of hair in a lifetime.
The largest cell in the human body is the female egg and the smallest is the male sperm.
There are about one trillion bacteria on each of your feet.
A human sneeze creates a blast of air that can be moving more than 100 miles per hour.
The average human drinks about 16,000 gallons of water in his or her lifetime.
A baby human’s fingerprints are formed after just three months of the pregancy.
The brain operates on the same amount of power as 10-watt light bulb.
Babies are born with 300 bones, but by adulthood the number is reduced to 206.
By the time they are 60 years old, most humans have lost half of their taste buds.
The human body has enough iron in it to make a 3 inches long nail.
The average human head has about 100,000 hairs.
Nerve impulses to and from the brain travel as fast as 170 miles per hour.
An adult human body contains approximately 100 trillion cells.
There are nearly 46 miles of nerves in an adult’s body.
Fingernails grow 4 times faster than toenails.
The strongest muscle in the human body is the tongue.
The human body is estimated to have 60,000 miles of blood vessels.
Everyone has a unique smell, except for identical twins, who smell the same.
All babies are color blind at birth, they see only black and white.
Your body requires 1000-1500 calories per day just to simply survive: breathing, sleeping and eating.
To completely regrow a human fingernail or toenail, all the way from base to tip, takes about 6 months.
The brain has approximately 100 billion nerve cells that send and receive information around the body.
A normal human being can survive 20 days without eating but can survive only 2 days without drinking.
By the time it is seventy years old, your human heart will have beat an average two-and-a-half billion times.
The only part of your body that has no blood supply is the cornea in the eye. It gets its oxygen directly from air.
In just 30 minutes, the average person’s body produces enough heat to boil a 1/2 gallon of water.
Your lungs need a lot of breathing room. The total surface area of the lungs is approximately equal to the size of a tennis court.
The human brain cells can hold between 3 and 1000 Terabytes of information. The National Archives of Britain, containing over 900 years of history, only takes up 70 terabytes.
The brain only makes up about 2% of the body but uses 20% of the oxygen that enters the bloodstream.

Interesting Facts About the Human Body

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