Chronic Stress in Dogs

Just like people, most dogs have both a variety of coping strategies and a relatively normal nervous system. These things allow them to deal with the many small stresses of day-to-day life, as well as occasional larger stressors.

However, also like people, not every dog deals with stress the same way, and some may struggle more than others. Whether due to chemical issues in the brain (such as a deficit or inbalance of certain neurotransmitters contributing to an anxiety disorder), the absence of a supportive environment in which to learn adequate coping strategies, or a personality that just doesn’t mesh with the lifestyle of their owners, some dogs simply aren’t equipped to deal with the life they lead.

Photo by Derek Ortiz

It’s a sad state of affairs when a dog suffers from chronic stress, and as we mentioned before it can also be dangerous. Chronic stress is hard on the entire body.  It can hasten the aging process, delay wound healing, contribute to depression or anxiety, decrease cognitive function, and increase the risk of illness from bacteria or viruses. Many chronically stressed dogs suffer from immune issues such as allergies or gastrointestinal problems. This is serious stuff.

Remember that stressors cause a chain of physical reactions in the body, which lead to heightened levels of stress hormones. While the first jolt of adrenaline released during a stressful event will begin to subside within the first fifteen minutes or so, the glucocorticoids that follow may take two to six days to return to baseline levels provided no other stressors follow during that time period.

At some point, a stressed dog is likely to reach his or her threshold. The threshold is the point at which the dog shows obvious signs of stress (whether by stressing up or down). Dogs have various thresholds – points at which they exhibit stress, points at which they may act out, even points at which they snap or bite.

Let’s say that your dog has a stressful event (perhaps a frightening thunderstorm or a really intense play session with the neighbor’s new dog). His stress level will spike, and you may see some signs of this in his inability to settle easily. If he has plenty of time to recover from that event, he’ll return to normal with no real concerns. This is what’s happening in the graph below.

In an ideal world, we would always give our dogs plenty of time to recover after events that pushed them over their threshold (and caused visible stress responses). However, this isn’t an ideal world, and sometimes stressors will stack up, coming in quick succession without time in between for the dog to recover. This happens in our lives too, sometimes, and provided we can acknowledge that this is happening and work to move beyond it, it’s not typically a big deal.

For some dogs, however, this becomes very important because they are never able to recover. Stressors continue stacking, so that the dog winds up beyond their threshold constantly. I often see this with the fearful or reactive dogs I work with. These dogs are chronically stressed, set off by every little things and constantly on edge. Their charts might look more like this:

Later this week, we’ll discuss how to help a dog who’s gotten stuck past his or her threshold. What sort of things cause a visible stress reaction in your dog, and how have you helped your pup to develop coping skills? Please share your stories in the comments below!

16 responses to “Chronic Stress in Dogs

  1. Oh boy-what things! Many things-other dogs, people (Especially men), loud noises, going to the vet and definitely vaccums! I have to thank my wonderful trainer for a lot of her progression, we went to reactive dog classes for over a year. She will never be “normal” but we have managed her stress and got her to the point where she is more comfortable with certain things. If we are at the park and people or dogs are there we do the quick turn around. I call her name and we avoid them and go another way. If it’s a person I pull her to the side and have her do tricks to focus on me while the people go by. I also keep the shades closed in the front of the house so she’s not going crazy over birds, people, or dogs walking by. We try to do a lot of things that she likes to reduce stress.I have also work a lot on counter conditioning when she had overall fear towards everything (including the ceiling fan). Additionally, we have her on a claming supplement and an anxiety medicine that has allowed us to get her past the wall of fear for training, and she was able to progress amazingly. Now she wants to play with other dogs, but she’s not ready yet since she gets too scared when she’s close (she was attacked by a dog). Great articles!

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  10. My boy, he’s 10. Very obsessive in everything he does. We are at the end of our tether. We love him to bits but I think maybe he is too much. We never leave him more than 4 hours, we come home to the carpet in a ripped up state, we repair, we repair. He hates to be in a closed area so we leave as much of the house open to him. He knows he’s done wrong, I’m wondering now if he is loosing his marbles….I walk him, stones are his obsession, chews sticks with aggression although he is the most loving dog. We have tried all the so called remedies to calm….Tys is the challenge.

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  15. Our Rescue dog came to us at 5 months old. He is a Bordercollie/Great Pyrenees/Husky mix. He was flown from Canadas Northwest Territory to Vancouver BC. We live in Washington state. He has been fearful of strangers and stuff that moves or not in place. Lately his stress levels have heightened as we are selling our house and moving. Boxes have been everywhere. He reacts to family and friends with heightened aggression.

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