Sandra Aamodt and Sam Wang have a guest post at Olivia Judson's On the Wild Side in which they discuss the complex interactions between genes and environment, focusing on personality and life experiences. They say that people with similar personalities, which are partially due to genes, are drawn to particular environments. Thus, they may share similar life experiences, such as getting into bar fights, mugged, or suffering from alcoholism. Aamodt and Wang add that the heritability of psychological traits increases as people get older and have more control over their environment. "Apparently those of us who suspect we are turning into our parents as we get older may have a valid point," they write.