Why Kids Bite And Why Punishment Doesn't Work

I met with a family recently with a 23-month-old (whom I'll call Aiden) who is biting. Naturally, the parents (Maritza and Oliver) are very concerned because other families are getting upset at their children being the victims of these bites.

Like many parents who find themselves in this situation, Maritza and Oliver want to do whatever they can to stop the biting. They believe/hope that punishment will end this behavior; that Aiden will want to please them and not get into trouble, which will motivate him to stop this behavior. So they have been using a harsh voice and putting him in time-out, or taking desired toys and activities away.

Meanwhile, Aiden has been walking around the house saying, "No biting. Aiden no bite," throughout the day. Just like us, kids replay experiences over and over that are emotionally-charged, trying to make sense of what it all means. This puts Aiden in a quandary, because what he does understand is that his parents are unhappy with him, but what he does not have is the impulse control to stop himself when he has this urge to bite. This puts him in a very uncomfortable, impossible situation. (It also means that no amount of threats or punishment is likely going to help him stop this behavior.)

As I guide Maritza and Oliver to do the detective work to figure out as best we can what the root cause is of the biting, we identify a pattern: the biting happens when Aiden is triggered into over-arousal. He is happily playing rough-and-tumble with his dad and then, out of nowhere, he chomps into Oliver's arm. Or, he is racing up and down the slide, and after a few rounds of this, sinks his teeth into a child next to him in line.

So, the punishment is not working because: