Hair is considered both dead and alive. Hair follicles include tiny blood vessels that are designed to keep it growing. This part of the hair is alive.
However, once the hair reaches the surface of the skin, cells die. This part of the hair is dead, which means that the hair that is visible to us is dead. The root of the hair remains alive.
Hair is considered a protein filament that is produced by the follicles found in a person's skin. Genetics determine hair texture, thickness and color. Hair located on each part of the body serves a different purpose.