Is there a master switch for changing human behavior? Something that boosts our empathy and morality and makes us less likely to do hurtful things? Economic psychologist Paul Zak says there is.
In his book "The Morality Molecule: How Trust Works," Zak writes about oxytocin, the "love hormone," and the powers it holds over human behavior. Zak joined HuffPost Live's Caroline Modarressy-Tehrani to explain the mechanics of oxytocin's effect on our relationships.
"As social creatures, we need some sort of signaling molecule that says, 'You're safe to be around, I can interact with you,'" he said. "Oxytocin motivates social interactions by reducing stress levels, and it actually improves our immune system, so we get these very subtle signals that you are part of my tribe or my family, so I can affiliate with you."
Get the scoop on oxytocin and how it makes us more trusting in the video above.