Quick answer
Border Collies, German Shepherds, and Lagotto Romagnolos are among the most anxiety-prone breeds, according to a landmark study of 13,700 dogs. But anxiety type varies by breed. Knowing your breed's specific weak spots lets you build the right prevention plan before problems start.
The Research Behind Breed Anxiety
In 2020, researchers at the University of Helsinki published the largest study to date on canine anxiety. They surveyed owners of 13,700 pet dogs across 264 breeds and measured seven distinct anxiety traits: noise sensitivity, general fearfulness, fear of surfaces and heights, separation-related behavior, compulsive behavior, hyperactivity and impulsivity, and aggression. [Scientific Reports, Salonen et al., 2020]
The headline finding: 72.5% of dogs showed at least one anxiety-related behavior. But the study also found massive differences between breeds across every trait measured. That means breed is one of the strongest predictors of what type of anxiety your dog is likely to develop and how severe it will be.
This is not about labeling breeds as "bad" or "broken." It is about giving you a head start. If you know your Border Collie is genetically wired for compulsive behavior, you can build a prevention plan before the obsessive tail-chasing starts. If you know your Vizsla is a velcro dog by design, you can practice separation training from day one instead of waiting for the couch to get destroyed.
The 10 Most Anxiety-Prone Breeds
1. Border Collie
Primary anxiety types: Compulsive behavior, noise sensitivity, hyperactivity
The smartest breed in the world is also one of the most anxious. Border Collies were bred to work 12-hour days controlling livestock across vast fields. That extraordinary brain needs a job. Without one, it turns inward. Compulsive behaviors like shadow chasing, light fixation, tail spinning, and obsessive ball focus are disproportionately common in this breed.
Noise sensitivity compounds the problem. A Border Collie who hears a firework does not just flinch. They may pace for hours, refuse food, and remember the experience for months. Their memory and pattern recognition, the same traits that make them brilliant herders, turn every scary sound into a data point they will not forget.
What helps: At least 90 minutes of physical exercise daily plus structured mental work (puzzle toys, nosework, obedience drills). A predictable daily routine is non-negotiable. For noise sensitivity, start desensitization early with our storm anxiety protocol.
2. German Shepherd
Primary anxiety types: Noise sensitivity, hyperactivity, separation anxiety
German Shepherds were bred to be vigilant. They scan their environment, assess threats, and react. This is exactly what makes them exceptional police and military dogs, and exactly what makes them anxious family pets when there is nothing real to guard against.
The Finnish study found that German Shepherds ranked among the highest breeds for hyperactivity and impulsivity. They also show elevated noise sensitivity. Add their strong attachment to their primary handler and you get a breed that is prone to separation anxiety on top of everything else.
What helps: Structured exercise with a purpose (not just walks, but training sessions, scent work, or agility). Clear leadership and consistent rules reduce the "on-guard" behavior. An anxiety vest can help during noise events.
3. Lagotto Romagnolo
Primary anxiety types: Noise sensitivity (extreme), general fearfulness
This Italian truffle-hunting breed may be the single most noise-sensitive dog in existence. The Helsinki study ranked Lagotto Romagnolos at or near the top for noise sensitivity across all measured stimuli: fireworks, thunder, gunshots, and even loud household sounds. Their fear response is intense and long-lasting.
If you own a Lagotto, noise desensitization is not optional. It is a core part of responsible ownership. Start during puppyhood with controlled sound exposure at very low volumes paired with high-value treats. See our puppy anxiety guide for the full socialization protocol.
What helps: Early, consistent sound desensitization. A safe room or crate with white noise during storms and fireworks. L-theanine-based calming supplements given 30 minutes before known noise events.
4. Australian Shepherd
Primary anxiety types: Compulsive behavior, separation anxiety, noise sensitivity
Like the Border Collie, the Australian Shepherd was built for all-day work in open spaces. They are intensely bonded to their handler and can develop severe separation anxiety when left alone. Their intelligence means they do not just chew a shoe when bored. They dismantle door frames, unzip crates, and find escape routes you did not know existed.
Compulsive behaviors, especially excessive circling and light chasing, appear more frequently in this breed than most. These behaviors often develop between 6 and 18 months when the puppy brain outgrows the available stimulation.
What helps: A minimum of two hours of combined physical and mental stimulation daily. Crate training from puppyhood to create a safe alone-time space. Frozen Kongs and puzzle feeders during absences. For severe cases, consult a veterinary behaviorist.
5. Cocker Spaniel
Primary anxiety types: Separation anxiety, fear-based aggression
Cocker Spaniels form deep attachments quickly. This makes them wonderful companion dogs, and it also makes them fall apart when their person leaves. Research on separation-related behavior consistently places Cocker Spaniels in the high-prevalence group, with studies noting that cooperative breeds bred for close handler contact show more separation distress than independent working breeds. [Applied Animal Behaviour Science, 2019]
A Cocker who has not been properly trained for alone time will bark, howl, drool, and may develop house-soiling behaviors. Fear-based snapping can appear when they feel cornered or overwhelmed.
What helps: Gradual alone-time training starting in puppyhood (our puppy guide has the step-by-step). Keeping departures and arrivals low-key. Calming treats 30 minutes before you leave.
6. Vizsla
Primary anxiety types: Separation anxiety (severe), general neediness
The Vizsla is called the "velcro dog" for a reason. This Hungarian hunting breed was developed to work within arm's reach of its handler all day. They do not just prefer your company. They need it. A Vizsla left alone for a standard eight-hour workday without preparation will almost certainly develop separation anxiety.
Their distress is not subtle. Vizslas are vocal, physical, and persistent. Destructive behavior, self-harm (excessive licking, paw chewing), and refusal to eat are all common in under-exercised, under-socialized Vizslas left alone too long.
What helps: This breed needs a lot of human contact. Doggy daycare, a work-from-home schedule, or a second dog can reduce alone-time stress. When alone time is unavoidable, build up gradually using the separation anxiety protocol. High-intensity exercise before departures helps burn off anticipatory anxiety.
7. Cavalier King Charles Spaniel
Primary anxiety types: Separation anxiety, general fearfulness
Bred for centuries as a lap dog, the Cavalier was literally designed to be with you at all times. This breed has a calm, sweet temperament that masks an intense dependency. They do not panic as dramatically as a Vizsla, but they suffer quietly: refusing food, becoming lethargic, and developing stress-related health issues when left alone.
General fearfulness is also elevated. Cavaliers can be spooked by unexpected visitors, unfamiliar environments, and even changes in furniture arrangement. Their sensitivity is part of what makes them such emotionally attuned companions, and also part of what makes them fragile.
What helps: Short, positive alone-time sessions from day one. A calming music playlist left on during absences. This breed responds exceptionally well to calming supplements because their baseline anxiety is moderate, not extreme.
8. Jack Russell Terrier
Primary anxiety types: Noise sensitivity, hyperactivity, compulsive behavior
Jack Russells pack the intensity of a working farm dog into a ten-pound body. They are reactive, fast-twitch, and always scanning. Noise sensitivity is common. A doorbell, a dropped pan, or a passing motorcycle can launch a Jack Russell into a barking frenzy that lasts well past the trigger.
Compulsive behaviors, especially excessive barking, spinning, and toy obsession, develop quickly when mental stimulation runs low. Their high energy makes them appear hyperactive even when properly exercised, which means true hyperactivity-driven anxiety often goes undiagnosed.
What helps: Challenging enrichment (puzzle feeders, snuffle mats, hide-and-seek). Short, frequent training sessions throughout the day. For noise reactivity, desensitize with controlled recordings and pair with chamomile or L-theanine supplements.
9. Bichon Frise
Primary anxiety types: Separation anxiety, noise sensitivity
Another companion breed built for constant human contact. Bichons are cheerful and social until the moment you close the front door behind you. Then the whining starts. Bichons develop separation anxiety at high rates because they were never bred to be independent. Every generation for hundreds of years was selected for their desire to be near people.
The good news: Bichons respond well to training and calming interventions because their anxiety is more about attachment than about deep-seated fear. Start alone-time training early, keep absences short initially, and always leave a high-value chew or calming treat as a departure ritual.
What helps: A consistent departure routine. A cozy crate in a central room (not isolated). Gradual increases in alone time. This breed is an excellent candidate for the calming routine builder.
10. Shetland Sheepdog
Primary anxiety types: Noise sensitivity (extreme), general fearfulness, compulsive barking
Shelties share the herding brain of the Border Collie in a smaller, more sensitive package. They are one of the most noise-reactive breeds, rivaling the Lagotto Romagnolo in their response to fireworks and thunder. Their compulsive barking is not just annoying. It is a genuine anxiety response, a self-soothing behavior that can become pathological if not addressed.
General fearfulness is also common. Shelties can be slow to warm up to new people, new environments, and new routines. This is not shyness. It is a hardwired caution that served them well on the Shetland Islands and serves them poorly at a busy dog park.
What helps: Early, broad socialization is critical (see our puppy anxiety guide). Sound desensitization starting at 8 weeks. A quiet, predictable home environment. For chronic barking, work with a trainer who understands that the behavior is anxiety-driven, not disobedience.
Breed Anxiety Comparison
| Breed | Noise Sensitivity | Separation Anxiety | Compulsive Behavior | General Fearfulness | Overall Risk |
|---|---|---|---|---|---|
| Border Collie | High | Moderate | Very High | Moderate | Very High |
| German Shepherd | High | High | Moderate | Moderate | Very High |
| Lagotto Romagnolo | Very High | Low | Low | High | High |
| Australian Shepherd | High | High | High | Moderate | Very High |
| Cocker Spaniel | Moderate | Very High | Low | Moderate | High |
| Vizsla | Moderate | Very High | Moderate | Low | High |
| Cavalier King Charles | Moderate | High | Low | High | Moderate-High |
| Jack Russell Terrier | High | Low | High | Low | Moderate-High |
| Bichon Frise | Moderate | High | Low | Moderate | Moderate-High |
| Shetland Sheepdog | Very High | Moderate | High | High | Very High |
Risk levels are based on prevalence data from the 2020 Helsinki study and supporting veterinary behavior literature. Individual dogs within any breed may fall above or below the breed average.
What These Breeds Have in Common
Look at the list and a pattern emerges. The most anxious breeds fall into two groups:
- High-drive working breeds (Border Collie, German Shepherd, Australian Shepherd, Jack Russell, Sheltie). These dogs were bred to be alert, reactive, and tireless. Their anxiety usually manifests as noise sensitivity, compulsive behavior, and hyperactivity. The fix is almost always more structured stimulation: physical exercise, mental challenges, and a predictable routine.
- Companion and velcro breeds (Cocker Spaniel, Vizsla, Cavalier, Bichon). These dogs were bred to be near their human at all times. Their anxiety is primarily separation-related. The fix is gradual independence training, departure rituals, and calming supplements to ease the transition.
The Lagotto Romagnolo is an outlier — a working breed with companion-level noise sensitivity. Their extreme reactivity to sound appears to be a breed-specific genetic trait unrelated to their working function.
Products That Help Anxious Breeds
No product replaces training and environmental management. But the right tools can lower the anxiety floor enough for training to work. Here are our top picks for breed-prone anxiety:
Zesty Paws Calming Bites
Soft chews with Suntheanine (L-theanine), chamomile, valerian root, and organic hemp. 90-count jar.
"Our top-rated calming treat. Give daily to high-anxiety breeds like Border Collies and German Shepherds to maintain a lower baseline. See our full review."
Check Price on Amazon →ThunderShirt Classic
Patented pressure wrap that applies gentle, constant pressure to the torso. Machine washable. Available in 7 sizes.
"The go-to for noise-sensitive breeds like Lagotto Romagnolos and Shelties. Most effective when introduced before the anxiety event, not during. See our anxiety vest guide."
Check Price on Amazon →KONG Classic (Large)
Ultra-durable rubber toy that can be stuffed with treats and frozen. Keeps dogs occupied for 20-45 minutes.
"Essential for separation-prone breeds like Vizslas and Cockers. Stuff it, freeze it, hand it over when you leave. The licking and chewing releases calming endorphins."
Check Price on Amazon →Building an Anxiety Management Plan for Your Breed
Knowing your breed's anxiety profile is step one. Here is how to build a prevention and management plan:
- Identify your breed's primary anxiety type using the comparison table above. Is it noise sensitivity? Separation anxiety? Compulsive behavior? Focus your plan on the most likely issue.
- Start socialization and desensitization early. The puppy socialization window closes around 16 weeks. For noise-sensitive breeds, begin sound exposure training immediately.
- Build a daily routine. Anxious breeds thrive on predictability. Same walk times, same feeding times, same departure cues. Our routine and anxiety guide has a template you can follow.
- Match exercise to the breed's needs. A 20-minute walk does not cut it for a Border Collie or Aussie. Check our exercise and anxiety guide for breed-specific recommendations.
- Layer in calming tools. Calming treats, anxiety vests, calming music, and supplements all work best in combination with training, not as replacements.
- Take the anxiety assessment. Not sure how severe your dog's anxiety is? Our free anxiety quiz takes two minutes and gives you a personalized action plan.
- Know when to call the vet. If your dog's anxiety does not improve after four weeks of consistent management, or if they are self-harming, refusing food, or having daily panic episodes, it is time for professional help. Our guide on when to see a vet for anxiety covers what to expect.
A Note on Mixed Breeds
Mixed breed dogs are not immune to breed-specific anxiety. The Helsinki study found that mixed breeds actually ranked among the highest for noise sensitivity. If your mixed breed has visible traits of any breed on this list, especially herding or companion breeds, assume they may have inherited the associated anxiety tendencies.
DNA tests can help identify what breeds are in your mix, which gives you a starting point for predicting anxiety patterns. But observation matters more than genetics. Watch your individual dog, track their triggers, and respond to the dog in front of you.
The Bottom Line
Every dog on this list is also an incredible companion. Border Collies are breathtakingly smart. German Shepherds are loyal beyond measure. Vizslas love with their entire being. The anxiety is the flip side of the traits that make these breeds extraordinary. Your job is not to "fix" the anxiety. It is to understand it, plan for it, and give your dog the tools to live well alongside it.
This article is for educational purposes only and does not replace professional veterinary advice. If your dog shows signs of severe anxiety regardless of breed, please consult a licensed veterinarian or board-certified veterinary behaviorist.