Dogs share many things with humans, both in their physical and mental health. It is important to understand that your dog’s behavior may not be deliberate on the dog’s part, or a result of his environment, but a result of a type of mental illness.
A recent study conducted by scientists at the University of Helsinki, found that dogs suffer from hyperactivity, impulsivity and inattention similar to the behavior of humans who have ADHD, or Attention Deficit Hyperactivity Disorder.
The researchers found that a dog’s age and gender combined with the owner’s experience made a difference in the 11,000 dogs studied. Hyperactivity, impulsivity and inattention were more common in young dogs and male dogs, the same as young children and males in humans.
The researchers also found that dogs suffer from an Obsessive/Compulsive type behavior that mirrors the same disorder in humans. OCD often shows up in people who suffer from ADHD as well. In dogs it can manifest itself as such behavior as: continuous tail chasing, licking objects or themselves and staring at things.
The researchers also noted that certain breeds of dog are more likely to exhibit ADHD and OCD behaviors than others.

It is important to understand that if a dog exhibits these behaviors, that they cannot help themselves and should not be punished or otherwise subjected to aversive training methods to try and change the behavior(s). If a dog exhibits ADHD or OCD related behaviors, contact a certified canine behavior consultant for help. However, it would be diligent to the prospective dog owner to carefully research different breeds and breeders. Also avoid designer breeds, they are typically not well bred and are often a mix of puppy mill stock. If anyone would like my free brochure about how to find the right breed and breeder, please feel free to contact me.