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Brain Facts

The average adult human brain weighs around 1.3 to 1.4 kg.

Within the first year of life, the human brain grows three times its size.

Information like vision, hearing and thought travels between neurons. This data has the ability to travel at speeds of up to 250 miles per hour.

As we become older, the human brain begins to shrink around the age of middle age.

The cerebrum, cerebellum, and brain stem are the three main parts of the brain.


Dehydration has a huge impact on brain performance as the brain is made up of 75 percent water.

There are almost 100 billion neurons in the human brain.

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Our brain reads pain signals sent to it, but the brain itself does not feel pain.

There are about 100,000 neurons in a tiny piece of brain tissue – about the size of a grain of sand.

Our brain uses about 20 percent of the oxygen and blood in our body.

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