In our daily life, if we are accidentally hit by current, we will feel numb all over. Sometimes, if our fingers touch current, we will feel as if our whole arm is numb. In fact, this feeling is very normal. Sometimes even if we don't touch the power supply, we will feel a little numbness in our arms as long as we are too close to the power supply. In fact, the reason for this feeling is mainly related to the structure of the human body and the nerves in the human body.

The first reason is that when we are accidentally excited by the current, when the current circulates from the inside of our human body, the electrical balance between nerves and cells in our human body will be disrupted instantly due to the invasion of external current. Especially for this part of the nerve, the external invading current will make the conduction between the nerves abnormal. Therefore, the stimulation received by the skin can not be transmitted to our central nervous system normally, and at this time we will feel the symptoms of numbness appear on the skin surface.

The second reason is related to the structure of the human body, which can be regarded as a very large resistance. Moreover, the human body is conductive, so when we accidentally touch the power supply, when the current flows from our hands to our whole body, the resistance inside the human body will become larger. At this time, when the current passes through our body again, we will feel the symptoms of numbness. Another reason is that the nerves of the body are very sensitive to external interference, and the interference form of current will make the nerves more sensitive to him, so they will feel numb.

Of course, electricity is a very dangerous thing for people. We must never touch the power supply, let alone touch the power supply when there is water in our hands. Once it is hit by the power supply, it is very dangerous, which will make us feel uncomfortable, and it is very likely to lead to the loss of our lives.