Seizures, which are an abnormality in the electric activity in the brain, occur in one of every four children with autism and will range in type and severity (Volkmarr, 2000). Persons who have seizures can engage in most activities, yet it is important to know if their seizures are controlled through medications, which may cause side effects. Medications that control seizures may have an effect on an individual’s physiological response to exercise and activity. In addition, certain activities are not recommended for individuals who have seizures, such as boxing, soccer and underwater swimming. Other activities, such as swimming, horseback riding, and contact sports, should be monitored to ensure the individual’s safety. Research suggests that exercise which is performed on a regular basis has been shown to inhibit seizure activity (Durstine & Moore, 2003).