

Adaptations related to hairlessness contributed to the increase in brain size, bipedalism, and the variation in human skin color. The loss of body fur was one of the physical characteristics that marked the biological evolution of modern humans from their hominin ancestors. Norms are codified to varying degrees by laws defining proper dress and indecent exposure. Some societies and groups continue to disapprove of nudity not only in public but also in private. While the majority of societies require clothing in most situations, others recognize non-sexual nudity as being appropriate for some recreational, social or celebratory activities, and appreciate nudity in the arts as representing positive values. Although often used interchangeably, "naked" and "nude" are also used in English to distinguish between the various meanings of being unclothed.Ĭontemporary social norms regarding nudity vary widely, reflecting cultural ambiguity towards the body and sexuality, and differing conceptions of what constitutes public versus private spaces. Nakedness and clothing are connected to many cultural categories such as identity, privacy, social status and moral behavior. In any particular society, these meanings are defined in relation to being properly dressed, not in relation to the specific body parts being exposed.

Nudity is culturally complex due to meanings given various states of undress in differing social situations. Partial nudity may be defined as not covering other parts of the body deemed sexual. Nudity is the state of being in which a human is without clothing or specifically not covering the genitals. Sunbathers at Müggelsee lake beach, East Berlin in 1989
