Sunday, 10 December 2006

How does our brain work?

Our brain is the hub of your nervous system. It is made up of 100 billion nerve cells - about the same as the number of trees in the Amazon rainforest. Each cell is connected to around 10,000 others. So the total number of connections in our brain is the same as the number of leaves in the rainforest - about 1000 trillion.

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