From the womb to the end of life, the human brain is constantly developing, but never more so than in the early years. Studies suggest the bulk of brain growth and development occurs after birth.
Developmental and behavioural paediatrician Dr Pongsak Noipayak, head of the Division of Child and Adolescent Development at Navamindradhiraj University's Faculty of Medicine Vajira Hospital, called the first three years "critical for building a child's brain".
Dr Pongsak said babies have about 100 billion neurons or nerve cells at birth. These grow and branch off to connect with each other, and a connection in the brain is made when the neurons fire. The more connections the brain has the more work it can do.
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