likely related to how trained and some untrained dogs sense what you are up to consciously or not (yet).

brains smell/decode info that we don't have an actual odor (but receptors) for.

it's also why (some) pets and animals react to their human's mood/attitude and short-, mid-, long-term stress (and other) hormone levels.

some people get their energy drained by persons that they are not even aware of being in proximity (e.g. dad got home after work while child is wearing headphones). it can become a matter of good or bad resilience, too, and some brains can develop defence mechanisms by mere exposure while others can't, which is likely (definitely) entangled in/with hormone metabolisms.

I say this as someone recognizing myself: learn the real, detailed, mechanistic, intelligible science. The world does not work like sci-fi, despite how many people make claims that amount to as much (with 0 actual evident evidence). That is not to say that all there is is what’s readily apparent. But when you forgo that assumption, you have to be careful because it easily slips into ur own understanding of what “there is” becoming overly skewed towards things that are not apparent (read: the brain feeding into its own maladaptive patterns of connection, making up things and then falling into confirmation bias). Physical reality is the base, at least when regarding things practically.