A tonic-clonic seizure usually affects the muscles. Tonic seizures are responsible for muscle stiffness, and clonic seizures are responsible for muscle twitching. During episodes of seizure, there may be a loss of consciousness.
Grand Mal Seizure - Causes, Symptoms, Diagnosis, and Treatment
The most apparent and recognized type of seizure is a tonic-clonic seizure, also known as a grand mal seizure. Read the article below to learn more about this.