Most traditional models of personality traits emphasize biology of the person to be very relevant to their personality traits, and even emphasize that this aspect of the person is unchangeable. But, within this article from 2008, the idea of sociogenomic biology is brought up for thought. This is introduced within the article and contradicts everything about biology and that biology is in fact changeable in certain circumstances. The article stresses that DNA can be changed through the environment in which one lives. This new thinking of biology is claimed to be the new modern way of looking at personality traits.