It is for this reason that most people diagnosed with epilepsy are prohibited or restricted by their local laws from operating vehicles. However, most places have exceptions built into their laws for those who can prove that they have stabilized their condition. Individuals who may be exempt from such restrictions or may have fewer restrictions include those who suffered seizures as a result of a medical condition that has been cured, from a physician's experimental medication change that failed, as an isolated incident, whose seizures occur only while asleep, or who may be able to predict their seizures in order to ensure that they do not lose consciousness behind the wheel of a moving vehicle.