We've all noticed those moments when our canine companions seem to sense our mood. Whether we're excited, sad, or anxious, they always seem to know. The research highlights that dogs are incredibly sensitive to their owner’s emotional states, particularly stress, which can directly affect their performance and learning abilities. While we’ve known for years that dogs can pick up on our emotions, this study provides the first scientific evidence showing how human stress odours can influence a dog's emotional well-being and ability to learn. Emotional contagion - the transfer of emotions from one individual to another - isn’t just something humans experience. It turns out our dogs are just as susceptible, especially when their closest human companions are stressed. When a dog's performance declines, it’s important to consider how the human is feeling before addressing the dog’s behaviour. By managing our stress and being aware of our emotions, we not only improve our own well-being but also enhance our dog’s ability to learn and perform. The bond we share with our dogs is built on trust, clear communication, and, as this research shows, emotional exchange. As we navigate our daily stresses, it’s essential to remember that our dogs are along for the ride, picking up on both conscious and unconscious cues and reacting in ways we might not always realise.