What is a key symptom of an epileptic seizure?

A key symptom of an epileptic seizure is a stiff body, often referred to as muscle rigidity or tonic activity. During a seizure, particularly in generalized tonic-clonic seizures, the body may experience sudden and intense muscle contraction resulting in stiffness. This rigidity is part of the body's response to abnormal electrical activity in the brain, which can disrupt normal neuromuscular functioning.

Seizures can also involve a loss of consciousness and rhythmic muscle contractions, but the characteristic stiffness is a notable immediate sign that caregivers may observe. Recognizing this symptom is crucial for managing a seizure event safely and for providing appropriate first aid, such as ensuring the person's safety and preventing injury during the episode.