Final answer:
A sudden increase of electrical activity in the brain, also known as convulsions, is a characteristic of epilepsy. Seizures can be caused by various factors, including brain injury, disease, or chemical imbalances in the brain. Medication is often used to control seizures in individuals with epilepsy.
Step-by-step explanation:
A sudden increase of electrical activity in one or more parts of the brain, also known as convulsions, is a characteristic of epilepsy. Epilepsy is a neurological disorder that causes recurrent seizures, which are periods of lost consciousness that may include violent muscle contractions. Seizures can be caused by various factors, including brain injury, disease, or chemical imbalances in the brain. While there is no known cure for epilepsy, seizures can often be controlled with medication.