Physical movement of any type is a good place to start. As Ilchi Lee says that any time we move our body, a host of neural connections is activated, and various parts of the brain are stimulated. A sedentary person is doing his brain little good since relatively few neurons are activated when we remain sitting. A sedentary lifestyle essentially allows the brain connections to atrophy, becoming sluggish or even inaccessible, especially as one gets older. An active person, on the other hand, is continually reinforcing the complex interaction of brain impulses needed to facilitate movement.

Our brain has about one hundred billion neurons. A neuron is the main character in the composition of the brain and reads the information transmitted from sensory organs such as the eves, nose, or skin, transmitting it back to other neurons. Not only that, it has the ability to receive, send out, and process information—the most important tasks of the brain.

Not like the cells of other organs, the neuron of the brain has a distinctive feature in that the number of neurons, once set, is fixed. The number of cells in other parts of our body can be increased through cell division. The reason our wounds get healed is because the number of the cells of the wounded part increases. However, once a neuron gets damaged in an accident, the corresponding function suffers. And this is the reason why we have to pay careful attention and especially take care of the brain.

However, although the number of cells decreases, we can fortunately still expand the network that brings cells together even when we get old. This network is called synapse, and it connects between the neurons. Regardless of our age, the synapse keeps growing as long as stimulation is given. Whenever it grows, the brain regains its youth.