This paper expounds the present situation and reasons of train impulse, and puts forward some countermeasures for preventing the train impulse and ensuring the smooth running of train.

The equations of the model, corresponding to postsynaptic potentials, receptor potentials, initial segment graded potentials and the impulse train along the axon respectively, have been given.

Therefore, it is more important to train the brain than the finger muscles, especially because any finger movement must originate as a nerve impulse in the brain.