Nudity or nakedness is the state of wearing no clothing. Wearing of clothing is a predominantly human characteristic arising from functional needs such as protection from the elements, from cold and heat, after the loss of body hair and migration to colder regions. The amount of clothing worn depends on functional considerations, such as a need for warmth or protection from the elements, and social considerations. In some circumstances, a minimum amount of clothing or none at all may be considered socially acceptable, while in others much more clothing may be expected. Social considerations involve issues of modesty, decency and social norms, besides other considerations, and these may depend on the context.
The nude figure is mainly a tradition in Western art, and has been used to express ideals of male and female beauty and other human qualities. It was a central preoccupation of Ancient Greek art, and after a semi-dormant period in the Middle Ages returned to a central position in Western art with the Renaissance. Athletes, dancers, and warriors are depicted to express human energy and life, and nudes in various poses may express basic or complex emotions such as pathos. In one sense, a nude is a work offine art that has as its primary subject the unclothed human body, forming a subject genre of art, in the same way as landscapesand still life. Unclothed figures often also play a part in other types of art, such as history painting, including allegorical andreligious art, portraiture, or the decorative arts.