Are you a leftie or a rightie? What does the way you use your hands say about you, and how does it influence your politics?
Chicago University psychologist Daniel Casasanto is a leader in research on experiential relativity – the theory that people who have different kinds of bodies, included left or right-handed propensity may think differently as a consequence.
It turns out things like the names we give our children and the politicians we vote for can be influenced by our favoured hand.
Daniel Casasanto talks with Kathryn Ryan: