Stress Signals Every Dog Owner Should Know

By The Bark Science Research Team · July 16, 2026 · 5 min read

Why Dog Body Language Deserves a Closer Look

Dogs are constantly communicating. The challenge is that much of what they say happens below the level of obvious signals like growling or tail-wagging. Long before a dog reaches a point of visible distress, they broadcast a quieter vocabulary of stress and calming signals — subtle shifts in posture, expression, and movement that reveal how they are feeling in any given moment.

Learning to read these signals accurately is one of the most practical skills a dog owner can develop. It helps you intervene early, adjust training approaches, and build a relationship based on genuine understanding rather than guesswork.

What Are Calming Signals?

The term "calming signals" was developed by Norwegian dog trainer and behaviourist Turid Rugaas to describe a set of behaviours dogs use to communicate discomfort, reduce tension in social situations, and attempt to de-escalate potential conflict. These signals often appear when a dog feels uncertain, mildly anxious, or overwhelmed.

The important thing to understand is that these behaviours serve a communicative function. They are not random nervous habits. When your dog yawns during a training session or looks away during an introduction with a stranger, they are telling you something worth hearing.

Common Stress Signals to Recognise

Lip licking and nose licking A quick flick of the tongue across the lips or nose — distinct from the leisurely licking that happens after a meal — is one of the most frequently overlooked stress signals. You might notice it when your dog is asked to hold a stay, when a child approaches too quickly, or during a visit to the vet. Context matters enormously here. A single lip lick in isolation may not mean much, but repeated lip licking in a tense environment is worth taking seriously.

Yawning Yawning in dogs is not always about being sleepy. A slow, wide yawn displayed toward another dog, a person, or during a training session can indicate mild stress or a desire to signal non-threat. If your dog yawns repeatedly when you raise your voice or when training feels frustrating, that is useful feedback about the emotional tone of the session.

Whale eye "Whale eye" refers to the whites of the eye becoming visible — typically at the corners — when a dog turns their head slightly away while keeping their gaze fixed on something. This crescent of white is often a sign of discomfort or anxiety. You may notice it when a dog is guarding a resource, feeling cornered, or tolerating handling they find uncomfortable. It frequently appears alongside a stiffened body.

Turning away or looking away When a dog deliberately turns their head, body, or both away from a person or another animal, they are often attempting to reduce tension or signal that they are not a threat. This is a classically appeasement-oriented behaviour. If you call your dog and they approach with their head turned to the side, they are likely picking up on something in your tone or posture that reads as threatening to them, rather than being stubborn or disobedient.

Freezing A dog who suddenly goes very still — particularly during handling or when approached by another animal — is displaying a stress response. Freezing is often a precursor to a more visible reaction, and it signals that the dog is deciding what to do next. It deserves immediate attention.

Panting, pacing, and yawning clusters When multiple signals appear together — panting without heat, restless movement, repeated yawning — they paint a clearer picture of a dog who is struggling to cope. Individual signals have more meaning when they cluster in this way.

What to Do When You See These Signals

The most important first step is to slow down and reduce pressure. If stress signals appear during training, end the session on something easy and positive, and revisit the difficulty level when both you and your dog are in a better state. Short, successful sessions are far more effective than long ones that push past a dog's threshold.

If the signals appear during a social interaction — with a person, a dog, or in a busy environment — create some distance. Move your dog away from whatever is triggering the response. Giving them space to decompress is not permissive; it is practical.

Reward calm behaviour generously. If your dog settles after a stressful moment, that is worth marking with a treat or gentle praise. You are reinforcing the dog for regulating their own emotions, which is a skill that compounds over time.

It is also worth examining the training methods you are using. Approaches that rely on punishment or intimidation are more likely to suppress calming signals rather than address the underlying emotions causing them — which can make the stress harder to detect, not easier.

If you are unsure how well your current training approach is serving your dog's emotional wellbeing, the quiz at /quiz/ is a good place to start building a clearer picture.

The Bigger Picture

Reading stress signals is not about treating your dog as fragile. It is about having access to better information. Dogs who feel understood tend to be more confident, more responsive, and easier to train — which benefits everyone involved.

References

Vieira de Castro, A. C., Fuchs, D., Morello, G. M., Pastur, S., de Sousa, L., & Olsson, I. A. S. (2020). Does training method matter? Evidence for the negative impact of aversive-based methods on companion dog welfare. PLOS ONE, 15(12), e0225023.