Our brain is like a team made up of many different workers, with each one having a job to do. As in any job communication between workers is very important. Each worker is responsible for different duties. One worker is in charge of understanding what the eyes see another for speech, and yet another controls the sense of smell. Each worker in the brain is actually called a neuron.
Neurons are like small telephone wires running through the brain.
The wires send signals to different parts of the brain and this is what makes us think and move. When a person has a seizure the neurons in the brain are either firing when they should not or they are not firing when they should. An uncontrolled discharge that affects several parts of the deep regions of the brain and then spreads to both sides is know as a generalized onset seizure. If the seizure happens in only an isolated part of the brain, it is known as a focal seizure. All types of epilepsy can be divided into these two categories.