How does my dog know when I'm stressed?
Your dog may notice changes in you, but that does not mean they can read your mind. Research offers an interesting clue about scent, with important limits.
What the research found
In a 2022 study, four trained dogs distinguished human breath-and-sweat samples collected before and after a stressful task. The findings show that some trained dogs can detect an odour difference under controlled conditions. They do not show that every pet recognises an owner’s feelings, knows why they are stressed or can predict stress before it happens. Read Wilson and colleagues’ original study in PLOS ONE (new tab).
Understanding your own dog
A change in your dog’s behaviour is a reason to look at the whole situation, rather than assume your emotions caused it. Notice what happens, when it happens and what else has changed in your dog’s routine or surroundings.
You do not need to feel calm all the time to deserve support. If you are worried about your dog’s anxiety or distress, an individual assessment can help you understand the pattern and plan useful next steps.