Why are some people trustworthy, while others lie, cheat and steal? Part of the answer may reside in a hormone called oxytocin. Claremont Graduate University's Paul Zak talks with WSJ's Gary Rosen about how a "vampire wedding" helped him understand how this chemical works to control trust, empathy and virtue.
Vampire Diaries fans have already heard that season 4 may very well end with Elena (Nina Dobrev) graduating from high Read Post
For his book, The Moral Molecule, Paul J. Zak drew blood from a bride, groom and their parents, before and after the vows, to measure the oxytocin levels: The bride's oxytocin level shot up by 28% after the vows, "and... Read Post