1. haidut

    Higher progesterone, lower estrogen makes women more generous

    It looks like the beneficial effects if progesterone and harmful effects of estrogen are not limited to health. The study below found a women become much more generous in terms of buying drinks or gifts for their peers during the luteal phase, when progesterone is elevated and estrogen is low...
  2. haidut

    Stress (cortisol) makes even altruistic people selfish

    A great new study, which may explain a good deal of the general perception and several studies from the last decade claiming that societies in Western countries are becoming more selfish, combative/polarized, and even psychopathic. The more shocking finding of the study was that cortisol was...
  3. haidut

    Deliberation Makes People Consistently Selfish

    The study was interesting b/c it also shows that even decisions based on intuition can be become selfish with time. The reason intuitive decisions may become selfish is our environment and negative experiences, not our genes. And if the environment changes, so do we...
  4. haidut

    Intuition, Creativity Make Us Altruistic; Reasoning Selfish

    I think this study supports Ray's ideas well. Too much analytical thinking is the hallmark of selfish, authoritarian thought and a symptom of defective metabolism. Creativity, altruism, trusting your senses and intuition is the behavior of "artists" and revered by the likes of William Blake...