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Researchers from Berlin analysed the characteristics of a number of genes among a group of healthy adolescents, and compared the results with intelligence scores and various neurological traits. 柏林的一些研究者研究了一组健康青年人的人格特征，并把这些结果和智商以及各种神经学特征进行了比较。 本来，在理想状态下，他们是要检查整个基因序列的。但因为样本量只有不到1500，所以他们只能把注意力聚焦于我们大脑中做决策的那一部分。 The researchers found a strong relationship between the epigenetic modifications of one particular gene and general IQ, suggesting our experiences not only affect the wiring of our brain, but the very way our genes function at a basic level. 研究者们发现，有一个基因上发生的后天变异可以影响我们的整体智商，这说明我们的经历不光会影响大脑的运行，还会从基因层面影响大脑运作的原理。 这些都属于表观遗传学（Epigenetics）的范畴，这个学科已经成为了近年来遗传学方面的显学，它让我们得以研究环境变化和我们基因之间的关系。 For example, in times of high stress, such as a persistent threat of violence or poor nutrition, physiological changes in the organism can tweak your genes by adding or removing a chemical group that effectively locks them down or opens them up. | 
