Without cell electricity there would be no life. Every cell of every organ and system in living species requires electricity or charge to function (ie. regulation and healing). This cell charge is critical for heart, nerves, muscles, and brain functions, in particular.
Everything we do is controlled and enabled by electrical signals running through cells. As we learned in intro physics, everything is made up of atoms, and atoms are made up of protons, neutrons, and electrons. Protons have a positive charge, neutrons have a neutral charge, and electrons have a negative charge. When these charges are out of balance, an atom becomes either positively or negatively charged. The switch between one type of charge and the other allows electrons to flow from one atom to another. This flow of electrons, or a negative charge, is what we call electricity. Since our bodies are huge masses of atoms with electrons, we can generate electrical current or charge.
When we talk about the nervous system sending signals to the brain, or synapses firing, or the brain telling our hands to grasp around a door handle, what we are talking about is electricity carrying messages between point A and point B. This could be compared with a digital cable signal carrying 1s and 0s that deliver cell coherence. However, electrons in our cells are not flowing along a wire; instead, an electrical charge is jumping from one cell to the next until it reaches its destination.
Electricity or cell charge is a key to survival. Electrical signals are fast at about 1 billion instructions every second. They allow for a nearly instantaneous response to control messages (eg. cell regulation and healing). If our bodies relied entirely on, say, the movement of chemicals to tell our heart to speed up when something is chasing us, we probably would have died-out a long time ago. However, this is a message that has not reached medical practice who think that the body function through chemistry. The crucial signals that tell our hearts to speed up when we're in danger come from a mass of cells in our heart called the sinoatrial node (SA node). It is located in the right atrium, and it controls the rhythm of our heartbeat and the movement of blood from the heart to every other part of our body. It's our body's natural pacemaker, and it uses electrical signals to set the pace. However, our pulse is not the only thing that relies on elec