Epilepsy is a medical condition that produces 
seizures affecting a variety of mental and physical functions. It’s also
 called a seizure disorder. When a person has two or more unprovoked 
seizures, they are considered to have epilepsy.
A seizure happens when a brief, strong surge of electrical activity 
affects part or all of the brain. One in 10 adults will have a seizure 
sometime during their life.
Seizures can last from a few seconds to a few minutes. They can have 
many symptoms, from convulsions and loss of consciousness to some that 
are not always recognized as seizures by the person experiencing them or
 by health care professionals: blank staring, lip smacking, or jerking 
movements of arms and legs.