håret

Håret is the definite form of the Norwegian noun hår, meaning hair. It refers to the filamentous keratin structures that grow from follicles in the skin of humans and many mammals. The term is used to describe hair on the head as well as hair on other parts of the body, and it can denote color, texture, or style.

Anatomy and growth: Each hair consists of a shaft that extends above the skin and a root located in a hair follicle beneath the surface. Hair growth occurs in cycles, including anagen (growth phase), catagen (transitional phase), and telogen (resting phase). The length, thickness, and curl of a hair are influenced by genetics and hormones, and can vary widely between individuals and body regions.

Color, texture, and distribution: Hair color is determined by melanin production in the follicle. Hair can be straight, wavy, or curly, and density varies across the scalp and body. Aging, genetics, and health can alter these characteristics over time, including the gradual graying of hair.

Function: Hair provides insulation and protection for the skin, helps shield the scalp from ultraviolet radiation, and serves as a tactile sensor by catching slight air movements.

Care and health: Hair is composed of dead cells, but its follicles are living tissue. Routine care includes gentle washing, conditioning, and minimizing heat or chemical damage. Persistent hair loss or changes in hair quality can indicate medical conditions and may warrant professional evaluation.

Cultural context: Hairstyles are a common form of personal and cultural expression, influenced by fashion, identity, and tradition.

See also: hair, hårrød? For Norwegian context, see håret and hårlengde.