Abstract

A good part of the explanation for differences in happiness has to do with genetics. This chapter reviews the scientific data relevant to a heritable component to happiness, and the prospects for using current and future technologies to alter those who have not won the genetic lottery. The chapter looks at the concept of heritability, and then at the heritability of happiness. The notion of heritability is typically seen as a composite of two factors: genetics and the environment. Three promising technologies could be used to change the biological basis of happiness: pre‐implantation genetic diagnosis (PGD), genetic engineering, and advanced pharmacology. Unfortunately, on enhancing the moods of healthy individuals, there is limited research. The fact that two thirds of these “normal and healthy” volunteers felt “better than well” sounds like good news for happy‐people‐pills. The chapter touches upon the paucity of studies of the effects of antidepressants on healthy individuals.