New research challenges the one-level view of evolution, showing natural selection works on individuals and groups together.

The in-group/out-group divide. Source: TherapyEverywhere/Open AI Human beings need to belong. From our earliest cave-dwelling ancestors, membership in a clan or tribe was a requirement for survival.

Self-actualization is a somewhat vague term that is used in slightly different ways by different psychologists. Originally used by Kurt Goldstein, it is loosely defined as “the realization or ...