Eyebrow

The eyebrow is an area of thick, delicate hairs above the eye that follows the shape of the lower margin of the brow ridges of some mammals. Their main function is hypothesized to prevent sweat, water, and other debris from falling down into the eye socket, but they are also important to human communication and facial expression. It is not uncommon for people to modify their eyebrows by means of hair addition, removal and makeup.

Functions

Physical

It is believed by anthropologists that the main function of the eyebrow is to prevent moisture, mostly salty sweat and rain, from flowing into the eye. Greek physician Herophilos, in his treatise "Anatomy," was among the first to hypothesize such a theory, proposing that the eyebrows are "adorned with hair, so that if copious perspiration came [down], it would be contained by this 'check-point' of hair placed in its way until it is wiped off, so that it could not obstruct the eyes." The typical curved shape of the eyebrow (with a slant on the side) and the direction in which eyebrow hairs are pointed, make sure that moisture has a tendency to flow sideways around the eyes, along the side of the head and along the nose. The slightly protruding brow ridges of modern humans could also be used as a defense structure against the floods of moisture. Desmond Morris, discussing the possible function of the eyebrow in human evolution, criticized this suggestion as non-effective and suggested that the primary function of the eyebrows is to signal the changing moods of their owners. Together with the brow ridges, the eyebrows also shade the eyes from sunlight. Eyebrows also prevent debris such as dandruff and other small objects from falling into the eyes, as well as providing a more sensitive sense for detecting objects being near the eye, like small insects.

Eyebrows (advertisement)

Eyebrows is a British television advertisement launched by Cadbury plc in 2009 to promote their Dairy Milk-brand chocolate.

The advert features two children, a boy and a girl, sitting in front of a grey backdrop at a photographer's studio. When the photographer leaves the shot to answer the telephone, the boy presses a button on his watch, at which point "Don't Stop The Rock" by Freestyle begins to play. The children begin to move their eyebrows up and down to the beat of the song. Throughout the song, the children move their heads from to left to right, up and down staring into a number of cameras, as they continue to move their eyebrows. Towards the end of the advert, the girl begins to release air from a pink balloon in time with the music, producing effects similar to scratching a vinyl. The end of the advert displays a bar of Cadbury Dairy Milk Chocolate above the slogan of the campaign: "A Glass and A Half Full of Joy".

The advert was written by creative director Nils-Petter Lovgren at Fallon and directed by Tom Kuntz.