Tonic-clonic seizures, previously known as grand mal seizures, are the most dramatic type of epileptic seizure. They can cause a sudden loss of consciousness, body stiffening and shaking. They sometimes cause people to lose control of their bladder or to bite their tongue. They may last for several minutes. #dravetsyndrome #statusepilepticus #dravetsyndromeawareness #grandmal #tonicclonicseizures #dravetsyndromeneversleeps #grandmal #tonicclonicseizures #dravetsyndromeneversleeps #seizure #seizu