The brain can develop and grow with use. Conversely, the brain seems to atrophy and grow smaller with disuse. This has been confirmed by recent experiments.
Meditation further develops the brain and with that the intelligence of the person.
The nervous system is made up of millions of nerve cells and only the brain contains approximately ten billion nerve cells. These nerve cells are also called neurons. A neuron is a specialized cell that is capable of receiving stimuli and transferring those stimuli for response. The function of the nerve cell is to transmit messages. These messages are in the form of electrical impulses.