Selanne documentary screening at Park Theatre

This spring, I adopted a three-month-old rescued German Shepherd mix. To say she is easily excitable is an understatement.

It is not really her fault. A puppy’s frontal cortex, the part of the brain that helps with decision-making and impulse control, is still developing. When an older dog, or a human, gets tired, we generally understand we should rest. Puppies have not quite figured that out. They often interpret tiredness as a signal something is wrong, which makes them more alert, more reactive and harder to settle.

That creates a feedback loop. The puppy gets tired, which makes her frantic, which makes her more tired, which makes her even more frantic. Eventually, this becomes what people call the “zoomies”: frantic sprinting, biting, jumping and general chaos.

From the outside, it looks like the puppy has too much energy. In reality, the opposite is true. The zoomies are not a sign of excess energy. They are a sign the puppy is overtired and does not know it yet.