Is morality universal? Why are men less faithful than women? Why do some businesses succeed while others collapse? If we have a natural impulse to empathise and care for each other, why are there psychopaths? Neuroscientist and economist Paul Zak has spent 10 years researching to answer these questions and discover the chemical driver of our behaviour. His research has led him from a 'vampire' wedding in Devon to the jungle of Papua New Guinea and from the US military to a Buddhist monastory. Detective story, adventure and scientific discovery rolled into one, "The Moral Molecule" is a brilliant read: compulsively entertaining and potentially life-changing.