The brain is still 
an under-explored area.

I present to you 10 interesting 
facts about this complex machine.

1.The left side of the human brain 
controls the right side of the body, 
the right side of the brain controls 
the left side of the body.

2.There are over 100 billion 
nerves just in our brain.

3. Newborn babies lose half of the 
total number of neurons in the
 first year of life.

4.The nervous system can transmit 
a nerve impulse faster than 
100 meters per second, and in some
cases the speed is over 
250 kilometers per hour.

5. The male brain has 6.5 times
more gray cells than the female,
but the female brain has 10 times
more white mass than the male.

6. The average human brain weighs
 1.3 pounds.

7.The brain can be deprived of 
oxygen for 4 to 6 minutes before 
it begins to die.

8. The brain, by itself, has no 
pain receptors and therefore 
cannot feel pain.

9. 161,000 kilometers is the length 
of blood vessels in the brain.

10. As much as 95% of our brain 
has reached its size by 7 years 
of age.