I study the biology of personality, and I've come to believe that we've evolved four very broad styles of thinking and behaving, linked with the dopamine, serotonin, testosterone and estrogen systems.
Proučavam biologiju osobnosti i počela sam vjerovati da smo razvili četiri velika stila razmišljanja i ponašanja povezanih sa sustavima dopamina, serotonina, testosterona i estrogena.