Wednesday, 21 November 2012

Facts About Your Brain



1. The human brain has about 100,000,000,000 or 100 billion neurons. From the age of 35 years about 7000 neurons are lost daily.


2. During early pregnancy the neurons in the fetus canmultiply at a rate 250,000 neurons/minute.

3. Brain is composed of 75 to 80% water. Dehydration can affect proper functioning of brain.

4. Brain consists of60% White matter and 40% Grey matter. White is the supporting matter and Grey is the thinking matter of the brain. If the brain was a computer the grey matter would be the computer itself and the white matter its cables.

5. Adult brain weighs about3 pounds or 1300 to 1400 Grams. This is about 2% of the body weight if you weigh 150 pounds or 70 kgs. Sperm whale’s brain weighs 7800 gms.

6. Although the brain only accounts for 2 percent of our body weight but it consumes20% of the oxygenthat we breathe androughly 20 percent of our daily calories.

7.15-20% of all blood pumpedout of the heart goes directly to the brain.

8. All the thinking in the brain is aboutelectricity and chemicals. The brain is more active and thinks more at night than during the day.

9. The brain itself isincapable of feeling pain. Once the skull is opened it is possible to operate on the brain with the patient awake.


10.You can’t feel your own tickle either. The brain is smart enough to neutralize the sensation. The cerebellum sends a signal to rest of the brain of your intentions and as a result the sensation is ignored.

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