Evolution acts slowly. Our psychological characteristics today are those that promoted reproductive success in the ancestral environmen. - Keith Henson. View more images...

People repeat behaviour that leads to flooding their brains with pleasurable chemicals. The short-term reward loop acts over hours to years, and the long-term reproductive success loop over generations. - Keith Henson. View more images...

Action leads to Attention. that in the short-term releases Rewarding brain chemicals and in the long term improves reproductive success. - Keith Henson. View more images...