成人快手

What are the chemicals that give us the confidence to approach someone we're attracted to, and what is the vital concoction that keeps us together? It all starts with oxytocin, that serves to give us the confidence to walk up to someone we find attractive and lowers our sense of 'social worries'. Evolution biologist Dr Anna Machin from Oxford University explains the science behind attraction.

Image: Man and woman face each other at a party Credit: Thinkstock