Dogs really can smell emotions like fear and happiness in humans, a new study has confirmed.
The research also showed that canines use odours to attune themselves to their owner's mood.
When their owner smells happy, dogs are calmer and more inquisitive around strangers, the study found.
But when their owner gives off a fearful smell, dogs become wary of new people and stick close to their master.
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Dogs can smell emotions like fear and happiness in humans, a new study has found. Research also showed that canines use their noses to attune themselves to their owner's moods (stock image)
THE SWEAT STUDY
To test whether a dog's smell can affect its relationship with humans, the researchers, from Naples University in Italy, stored sweat samples from men.
Some of the samples were taken while men had watched a happy movie, the Jungle Book, while others were taken while they watched a scary movie - the Shining.
The team then separated 40 dogs out into rooms with one of the sweat samples, their owner and a stranger.
The 'happy' smell meant dogs were more likely to sniff inquisitively at the stranger in the room.
When dogs were placed in a room with the fearful smell, they were more likely to stay close to their owner and show signs of stress.
The researchers suggest that dogs are more likely to be happy with a situation if they feel their owner is, while they are more likely to be cautious if their owner is unsettled.
'Dogs have an extraordinary ability to detect airborne odours and not surprisingly their olfactory system is a significant contributor to the regulation of their social relations,' the researchers wrote in the journal animal cognition.
To test whether a dog's smell can affect its relationship with humans, the researchers, from Naples University in Italy, took sweat samples from men.
Some of the samples were taken while the men watched a happy movie - the Jungle Book.
Other samples were taken while the men watched the Shining, a scary movie.
The team then separated 40 dogs out into rooms with their owner, one of the sweat samples and a stranger.
While a fearful person's sweat went largely unnoticed by the humans, it had an intense effect on the behaviour of the dogs, the researchers found.