What defines a seizure?

A seizure is primarily defined by abnormal electrical activity in the brain. This disruption in the brain's normal electrical patterns leads to a variety of symptoms, which can range from convulsions and shaking to temporary lapses in awareness. Understanding this definition is crucial for recognizing the signs and symptoms of seizures, as well as for properly addressing the needs of individuals experiencing them.

Uncontrolled shaking can occur during a seizure, but not all seizures manifest with visible shaking. Some seizures may present with other symptoms such as altered consciousness or a brief absence of awareness. Increased heart rate can be a physiological response to panic, anxiety, or other stimuli but is not a defining characteristic of a seizure itself. Intense headaches may sometimes accompany neurological conditions, but they are not an indicator of a seizure. Thus, focusing on the abnormal electrical activity in the brain provides the most accurate definition of what constitutes a seizure.