Sweating in sync indicates attraction on a first date, study finds

We're often told that copying body language and mannerisms on a first date are surefire signs that your date is interested in you. But according to researchers in the Netherlands, in-sync sweating and heart rates are much better indicators of a romantic attraction. In a blind date setting, experts fitted male and female participants with eye-tracking glasses and other devices to measure behavioural and physiological signals. They found no significant link between physical attraction and copying body language -- either smiling, laughing, direct eye contact, head nods or hand gestures. A stronger indicator of attraction was'physiological synchrony' -- in-sync sweating and heart rates -- which they say is'a precursor of deeper emotional understanding'.