The Border Collie that obsessively chases shadows. The German Shepherd that barks itself hoarse at every bicycle that passes. The Australian Shepherd that won’t eat for two days after any change in routine. The Sheltie that trembles under the table every November.
I see these presentations constantly. And when I raise the word “anxiety,” owners sometimes push back. “She’s not anxious, she’s just reactive.” “He’s not stressed, he’s just vigilant — he’s a working breed.”
I understand the reluctance. “My dog is anxious” carries implications that “my dog is just being a dog” doesn’t. But the distinction matters, because untreated anxiety causes genuine suffering, drives secondary health problems, and gets worse over time rather than better.
Why Herding Breeds Are Different
To understand why herding dogs are so prone to anxiety, you need to understand what they were bred to do and what that breeding actually selected for in the brain as much as the body.
Herding work requires a dog that is acutely sensitive to movement, sound, and context. A Border Collie needs to notice a single sheep breaking from the flock at the edge of its peripheral vision. A German Shepherd needs to detect a change in the behaviour of a flock or herd that signals a predator’s approach. An Australian Shepherd needs to respond instantly to a handler signal across a hundred metres of paddock.
All of this requires a nervous system set at high alert. A herding breed that missed things, that habituated quickly to stimuli, that wasn’t perpetually scanning its environment, would be a poor working animal. The anxiety we see in companion and pet herding dogs is, in large measure, the herding temperament in a context it wasn’t designed for.
This doesn’t mean it’s inevitable or untreatable. But it does mean that herding breeds often need more than standard behavioural advice. They’re not misbehaving or spoiled; they have nervous systems that are extraordinarily sensitive by design, living in an environment that offers no appropriate outlet for that sensitivity.
What Anxiety Actually Looks Like
One reason anxiety is underdiagnosed in herding breeds is that it doesn’t always look like what owners expect. The trembling, cowering dog is recognisable. The following presentations are less often identified for what they are.
Hypervigilance. The dog that’s always watching, scanning, unable to settle. The one that can’t relax on the sofa because there might be a sound from the kitchen. That constant alertness is exhausting, for the dog and for the people around it.
Compulsive behaviours. Chasing lights and shadows, fly-snapping at nothing, spinning, fence-running, repetitive barking patterns. These are self-soothing behaviours that develop when an anxious dog needs an outlet. They’re not “just quirks.” Once established, they’re extremely difficult to extinguish and they indicate significant chronic stress.
Over-attachment. The dog that follows you from room to room, that cannot be put in another room without distress, that knows your car from a hundred yards and starts anxious behaviours when it disappears around the corner. Separation anxiety in herding breeds is particularly common and often severe.
Reactive behaviour. The dog that lunges at other dogs, cyclists, runners, or strangers on lead. Reactivity is usually driven by anxiety — the dog is scared of the trigger, not aggressive. The distinction matters because treating it as an aggression problem misses the underlying emotional state.
Digestive disturbance. The connection between the brain and the gut is direct and physiologically real. An anxious herding dog will often have gut symptoms — loose stools, intermittent vomiting, colitis-type episodes before predictably stressful events. I’ve written about the stress-gut connection in herding breeds in more detail; it’s a significant and underappreciated dimension of managing these dogs.
Physical symptoms during known stressors. Fireworks, thunderstorms, vet visits, travel. Vomiting, diarrhoea, salivation, trembling, panting, refusal to eat. These are stress responses, not behaviour problems. They need treating as what they are.
The Cascade Problem
Anxiety doesn’t stay in its lane. In herding breeds particularly, I see a cascade effect where one form of anxiety breeds another, and chronic anxiety begins to affect physical health in measurable ways.
Chronic stress activates the hypothalamic-pituitary-adrenal axis, the cortisol stress response system. Cortisol, useful in short bursts, is damaging over months and years. It suppresses immune function, disrupts sleep, increases intestinal permeability, promotes weight gain, and in extreme cases contributes to cognitive dysfunction in older dogs.
The chronically anxious herding breed is not just unhappy in a behavioural sense. They are physiologically compromised. Their immune system is less effective. Their gut barrier is more permeable. Their sleep is disrupted. They age faster.
This isn’t speculation. We have good evidence for these mechanisms in both humans and dogs. The model of psychological health and physical health as separate domains is simply wrong.
For older herding dogs, anxiety history interacts with ageing in important ways. A dog that has been chronically anxious for years is more likely to develop cognitive dysfunction as they age and less likely to manage the physical discomforts of ageing stoically. Managing anxiety in a younger dog is partly an investment in how that dog will manage their later years.
What Doesn’t Work
I want to spend a moment on this because owners sometimes waste significant time and money on approaches that the evidence doesn’t support.
Punishment for anxious behaviour. If a dog is barking compulsively because it’s anxious, punishing the barking makes the anxiety worse and often produces new behaviour problems. The behaviour may be suppressed in the short term, but the underlying emotional state hasn’t been addressed and will express itself differently.
Flooding. Exposing an anxious dog to the feared stimulus at full intensity in the hope they’ll “get over it.” Sometimes called “throw them in at the deep end.” This is well-established as counterproductive for anxiety disorders in both animals and humans. It worsens sensitisation rather than reducing it.
Reassurance as the only tool. Telling your dog it’s okay when they’re frightened is not harmful — the old idea that you’re “rewarding the fear” was largely wrong. But reassurance alone, without any broader management strategy, doesn’t reduce anxiety. It provides temporary comfort without addressing the underlying condition.
Herbal and natural supplements as the sole intervention for significant anxiety. I’m not dismissive of these products. Some, like l-theanine and certain milk peptides, have modest evidence behind them and I use them occasionally as part of a broader plan. But for a German Shepherd with severe separation anxiety or a Border Collie with established compulsive light-chasing, a supplement is not treatment. It’s like giving a paracetamol to someone with a broken arm.
What Actually Helps
Behaviour modification done properly. Systematic desensitisation and counterconditioning — carefully and gradually exposing the dog to the anxiety trigger at a level that doesn’t elicit the fear response, while pairing it with something positive — is the backbone of effective anxiety treatment. It requires consistency, patience, and usually professional guidance from a qualified behaviourist. It is not quick. It takes weeks to months for established anxieties. But it works, and the results are durable.
Environmental management. Reducing exposure to triggers while behaviour modification is underway, creating safe spaces the dog can retreat to, ensuring adequate mental and physical exercise. A herding breed that is bored and under-stimulated is a herding breed that’s more anxious. These dogs need their minds engaged.
Medication, when indicated. I want to normalise this, because there’s still significant resistance among some dog owners to the idea of medication for anxiety. For dogs with moderate to severe anxiety, particularly where it’s causing suffering and is impacting quality of life, medication is not a weakness or a failure. It’s appropriate medical care.
Selective serotonin reuptake inhibitors (SSRIs) like fluoxetine, and tricyclic antidepressants like clomipramine, are well-studied for canine anxiety disorders. They reduce the baseline anxiety level so that behaviour modification can actually work. In many cases, medication doesn’t need to be lifelong — once anxiety is successfully managed through behaviour modification, the medication can often be tapered.
For situational anxiety — fireworks, specific events — short-acting medications like trazodone or benzodiazepines can provide appropriate relief. The old advice to “ignore” a dog during fireworks was not only unhelpful but unkind. These dogs are frightened. Appropriate medication prevents suffering.
MDR1-affected herding breeds require extra care with any psychiatric medication, as some drugs in this class are affected by the gene mutation. Ensure your vet knows your dog’s MDR1 status before prescribing any anxiolytic medication.
Adequate and appropriate exercise. Not just physical exercise, though that matters. Mental exercise. Herding breeds need to think. Sniff work, scent training, puzzle feeders, learning new things — these provide the cognitive engagement these dogs need and reduce the restless, scanning anxiety that comes from a bored herding breed brain with nothing to do.
Routine and predictability. Within reason, herding breeds are helped by predictable environments. When change is necessary, introducing it gradually and pairing it with positive experiences reduces the impact.
The Prognosis
I want to be honest: long-established anxiety in herding breeds, particularly compulsive behaviours that are well-ingrained, can be managed but often not fully resolved. A Border Collie that’s been shadow-chasing compulsively for two years will probably always have the tendency. With management, it may reduce to an occasional behaviour rather than an all-day occupation. That’s meaningful improvement in quality of life.
For early-identified anxiety in younger dogs, the outlook is considerably better. The herding breed puppy that shows early signs of anxiety — over-reactivity, inability to settle, excessive startle responses — can often be supported through early intervention in ways that prevent the ingrained patterns from developing.
The take-home message is simple: herding breed anxiety is real, it’s common, and it’s not your dog “being difficult.” It’s a nervous system doing what it was bred to do in a context that makes it maladaptive. It deserves proper assessment and proper treatment, not dismissal or punishment.
These dogs are extraordinary animals. They deserve to spend more of their lives genuinely comfortable, not just managing.