The main differences between a childs and an adults brains lie in size, plasticity, and developmental stages. A childs brain is much smaller at birth but grows rapidly, doubling in size in the first year and reaching 90% of its adult size by age 5. The childs brain is also more plastic and capable of rewiring parts of its circuit for new learning than an adults brain, with over a million new neural connections forming every second during early childhood. As the childs brain matures, it undergoes a pruning process, eliminating weaker or unused connections to increase efficiency and create more complex circuits (17) (18) (19).