Evolution of emotion - Wikipedia The Evolution of Emotions in Humans: A Darwinian–Durkheimian Analysis “Evolutionary theorists think sadness might play its own survival role. read more
It has been hypothesized that depression is an evolutionary adaptation because it helps prevent infection in both the affected individual and his/her kin. First, the associated symptoms of depression, such as inactivity and lethargy, encourage the affected individual to rest. read more