Strictly control the use time. After using the hypnotic instrument, the body will shake, because in the process of use, micro-current stimulates the activity of brain cells, and the human body will have a process of reconciliation of brain nerves, and in this reconciliation process, the human body will feel inappropriate, so when using it, it is necessary to strictly control the use time, so as to control the frequency of use and let the body gradually adapt to the hypnotic instrument without shaking. If it is used for too long, it will lead to severe trembling and paralysis.