Nosework makes dogs more optimistic. New scientific research by Dr. Charlotte Duranton (Ethodog) and Dr. Alexandra Horowitz (Barnard College) finds that dogs who participate in nose work have increased optimism compared to dogs that took part in heelwork instead. Importantly, both activities involved perambulation, as well as food rewards as positive reinforcement. The difference is that in nosework the dog has the opportunity to use their nose and to exercise choice in what they are doing.