A recent study has found that dogs can sniff out stress in people. The dogs examined were able to smell changes in human breath and sweat, and — with high accuracy — identify chemical odors people emit when feeling stressed. The findings provide “deeper knowledge of the human-dog relationship and adds to our understanding of how dogs perceive and interact with human psychological states,” said Clara Wilson, a doctoral student and one of the study authors. Researchers say, the ability of dogs to smell human stress could prove valuable in training service and therapy dogs, who now largely respond to visual cues. Read more through the link in our bio.