Have you ever caught a whiff of someone’s scent and suddenly thought that they were looking mighty fine? You’re not alone:The link between seduction and smell is as old as civilization itself. According to the story of Cleopatra, not one but two great leaders of the ancient Roman Empire fell under her spell after smelling her perfumed concoctions. So what is it about fragrances that can bring even warlords to their knees? Psychologists believe that the area of the brain that processes scent is also the part that processes emotions — and certain odors can make us feel stimulated, aroused, and excited. We consulted master perfumer Christine Nagel, the nose behind Jo Malone London,…