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The brain is an important organ with many different parts that work together to do the essential work of human life. The brain controls everything that happens in our body, including conscious processes (such as thinking, reasoning, memory and emotions) and unconscious processes (such as breathing, digestion, balance, and reflexes.) The brain is well-organized to handle its many functions.
The brain is made up of cells called neurons, which communicate by sending electrical signals. The networks of connections between neurons determine everything that happens in the brain. These networks of connections are developed and refined during brain development, based on children's specific experiences.