Brain Development

At birth, a baby's brain already has 100,000,000,000 cells.  This is about the same number of stars in the Milky Way.  Unlike the rest of a new baby's body, the brain is not complete at birth.  In order to start working, the cells need to communicate with each other.  As a baby starts to experience life, connections are made between cells - the more connections there are, the more the brain can do. A baby's brain develops so fast that by age two a child who is developing normally has the same number of connection as an adult.  By age three, a child has TWICE as many brain connections as an adult.