The first time- and almost every time- you see someone have a seizure, you are frightened. Especially if it’s your child. You want someone to DO SOMETHING. But, some seizures are best left to their own courses, and some need intervention. Physicians will tell you they determine the severity of a seizure by how long it lasts- but that’s not a clinically responsible answer. Seizures are more severe when brainwaves are suppressed- but that requires EEG measurements, which require tons of sensors about the scalp and head. And, these are virtually impossible to wear all the time and typically would not survive a seizure, anyway.