Some amazing facts about human brain that may wake you......

        Human Brain.......

Here are some interesting and amazing facts about our brain.

*  Our brain is bivided into four different parts.

• The human brain is the largest brain of all vertebrates relative to body size.

• It weighs about 3.3 lbs. (1.5 kilograms).

• The average male has a brain volume of 1,274 cubic centimeters.

• The average female brain has a volume of 1,131 cm3.

• The brain makes up about 2 percent of a human's body weight.

• The cerebrum makes up 85 percent of the brain's weight.

• It contains about 86 billion nerve cells (neurons) — the "gray matter."

• It contains billions of nerve fibers (axons and dendrites) — the "white matter."

• These neurons are connected by trillions of connections, or synapses.

•  *     It comprises 60% of fat and is one of the fattest organs in the human body.
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• *     Human brain has the capacity to generate approximately 23 watts of power when awake.
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• *     Of the total blood and oxygen that is produced in our body, the brain gets 20% of it.
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• *   When the blood supply to the brain stops, it is almost after 8-10 seconds that the brain starts losing the consciousness.
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• *    The brain is capable of surviving for 5 to 6 minutes only if it doesn’t get oxygen after which it dies.
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• *   The blood vessels that are present in the brain are almost 100,000 miles in length.
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• *     There are 100 billion neurons present in the brain.
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• *     In early pregnancy, the neurons develop at an alarming rate of 250,000 per minute.
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•  *      As we grow older, we are unable to remember new things. According to the researchers in the US it is because the brain is unable to filter and remove old memories which prevent it from absorbing new ideas.
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• *  our brain is made up of 75 percent of water.
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• * cerebrum is the largest part of our brain.
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• * We thinks more at night as compare to day time.

* More cracks at the brain surface the persone will be more intelligent.

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Please comment also that which fact made you more surprised.............

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