What happens during a seizure is interesting. Normally, humans think and move and experience the world through the activity of their brain cells or neurons that produce electrical and chemical signals. These signals control everything you do. You can’t stretch a finger without the appropriate neurons firing off the appropriate signals. Sometimes these signals misfire, like when you feel a random twitch somewhere in your body and you’re not sure why it happened. With a seizure, however, many neurons misfire all at the same time. And they misfire at a much faster rate than they would if they were functioning normally.