Wednesday, March 31, 2010

Some Interesting & Unusual Facts about the Human Body

We often say that we know everything about our body. But how much we do actually know about your own body? Here are some facts that may surprise you.



Skin

The largest organ in the body is the skin. In an adult man it covers about 1.9m2 (20sq ft).

The skin constantly flakes away – in a lifetime each person sheds around 18kg (40 lb) of skin

Nerve
There are 45 miles of nerves in the skin of a human being.

When we touch something, we send a message to our brain at 124 mph

Heart
In a year, a person`s heart beats 40,000,000 times. 

Circulatory system

The total length of your circulatory system stretches an amazing 60,000 miles. That is more than twice the distance around the Earth.
We give birth to 100 billion red blood cells every day and about two million red blood cells every second. 

Eye
Most people blink about 25 times a minute. The average human blinks his eyes 6,205,000 times each year.

Everyone is colorblind at birth.


Ear and nose

A sneeze zooms out of your mouth at over 100 m.p.h.
Your ears and nose continue to grow throughout your entire life.

Our hearing is so sensitive it can distinguish between hundreds of thousands of different sounds.
Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.

Stomach

The stomach’s digestive acids are strong enough to dissolve zinc. Fortunately for us, the cells in the stomach lining renew so quickly that the acids don’t have time to dissolve it.
The stomach has 35 million digestive glands.
When you eat meat and drink milk in the same meal, your body does not absorb any of the milk's calcium.
It is best to have 2 hours between the milk and meat intake.

Saliva
The average human produces a quart of saliva a day or 10,000 gallons in a lifetime.

Tongue

Like finger print, every person has a unique tongue print.

Teeth

The tooth is the only part of the human body that can't repair itself


Lung
The lungs contain over 300,000 million capillaries (tiny blood vessels). If they were laid end to end, they would stretch 2400km (1500 miles).

Liver

If a person has two-thirds of their liver removed from trauma or surgery, it will grow back to its original size in four weeks time.
The liver is often called the body's chemical factory. Scientists have counted over 500 liver functions. 

Body immunity

We have a whole pharmacy within us. We can create any drug inside us

Our bodies are recreating themselves constantly - we make a skeleton every 3 months, new skin every month.

Bone

More than half the bones in the human body are in the hands and feet.
A newborn baby has 350 bones, but a fully-grown adult has only 206


Brain

Our brain is more complex than the most powerful computer and has over 100 billion nerve cells.

Hair

It is normal to lose 100 hairs per day from the scalp.
Human hairs grow at an average of ½ to 1 in. a month or six to twelve in. a year.


Some more

A person can live without food for about 40 days, but only about 7 days without water, 6-8 minutes without air, and literally an instant without Life Force.

Human body has a tails too. The tail is about 1 to 2 in. long. It is the end tail of the spinal cord called coccyx.

Our Body produces carbon in such a rate, which is enough to manufacture 900 pencils.

Our bodies contain enough water to fill a ten-gallon tank.

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