Development of Human Brain
Nerve cells, called neurons, are the fundamental elements of the central nervous system. The central nervous system is made up of about 100 billion neurons (10 to the power 11). The brain grows at an amazing rate during development. At times during brain development, 250,000 neurons are added every minute. At birth, almost all the neurons that the brain will ever have are present. The first three years of life are a period of incredible growth in all areas of a baby’s development. A newborn’s brain is about 25 percent of its approximate adult weight. But by age 3, it has grown dramatically by producing billions of cells and hundreds of trillions of connections, or synapses, between these cells. Parents should grab the chance of the first years to help their children get off to a good start and establish personalized patterns for life-long learning.