Who doesn't like a furry friend hanging around? LA Times:
The VCU researchers divided 76 employees into three groups: those who brought their dogs to work, those who owned dogs but left them home and those who didn't have pets. For one week, the scientists measured levels of the stress hormone cortisol in samples of the workers' saliva and used surveys to gauge their stress levels four times during a workday.
There was no significant difference in cortisol levels among the study participants. But by the end of the day, the average stress level scores fell about 11% among people who had brought their dogs to work, while they rose as much as 70% for members of the other groups.
The researchers also observed "unique dog-related communication" in the workplace, Barker said. During the day, people who hadn't brought pets walked over to colleagues who had and asked whether they could take the four-legged visitors for walks.