How does pruning change an older child’s brain?

Pruning in the brain is also called axon pruning or neuronal pruning. When it occurs in the brain, it makes the synapses more efficient. ... Your child's brain was full of more than 100 billion neurons at birth. By the time he or she is an adult, that number will reach 500 billion neurons.

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other.