behavior

Photo courtesy University of IowaCould there be a link between the obesity epidemic and eugenic thinking? A historian of science at Washington University in St. Louis poses the question.As obesity rates continue to grow in the United States, threatening the health of millions of Americans, a historian of science warns that social problems such as this cannot be solved through science, especially genetics, alone. In this new “gene age” in which large amounts of research funds are used for studies on the genetics of such complex social traits as alcoholism, criminality or obesity, for example, Garland E. Allen, Ph.D., professor of biology in Arts & Sciences at Washington University in St. Louis, says the climate is ripe for a “re-packaged” eugenics in American society. Allen points out that 100 years ago, eugenics, a movement that claimed many social, personality and mental traits were hereditary, was emerging as a major social movement in Europe and the United States. His concern: it might well still be with us today.

Photo by Joe Angeles/WUSTL PhotoAre gamblers impulsive?Why do people engage in behaviors they know are harmful to them in the long run? Why do we give in to that incredible chocolate cake even though we’re trying to lose weight and stay fit? The answer, suggests a recent study on the psychology of gambling and impulsive behavior, is a simple economic phenomenon known as discounting. While good health may be its own reward, research suggests that the value of that reward diminishes as it’s delayed; and the longer it’s delayed, the less it controls your present behavior. Although gamblers may deserve their reputations as notorious risk-takers, they often do better than non-gamblers at delaying gratification to maximize long-term rewards.