New research out of UC Davis suggests that when couples who are romantically involved interact, their heart and respiratory rates sync up.
But that doesn't mean you should bring a pair of heart rate monitors to scout out potential partners on your first date. When study participants were paired with someone outside their relationship, neither their heart rates nor their breathing closely matched.
To conduct their research, which was funded by the National Science Foundation and published in the International Journal of Psychophysiology and Emotion, the psychologists in one study placed couples a few feet apart in a quiet, calm room and instructed them not to talk or touch. In another, the couples were asked to mimic each other without speaking. In both instances, heart and respiratory rates were closely matched.… Read more