People have always wondered why humans have eyebrows! They definitely played an important role in our culture though, in terms of beauty, since long time. We pluck, pierce, color or tattoo our eyebrows to make fashion statements. However, they don't seem to serve any other logical function apart from enhancing beauty - or do they? Well! The answer is yes, though their purpose has lost significance over time as humans evolved.
Eyebrows act as umbrellas for the eyes. The arch-shaped eyebrows help keep our vision clear by diverting rain and sweat away from the eyes to the sides of the face - leaving our eyes fairly dry. By doing so, our eyebrows not only allow us to see more clearly, but also keep salty sweat from burning or irritating our eyes.
Eyebrows have other roles too. Recent researches support these theories of the fact - why we did not lose our eyebrows with evolution. As one of our most expressive facial features, eyebrows help us determine how people are feeling without ever really asking them. In fact, eyebrows help with human communications. Often, you can tell how a person is reacting to something just by looking at the way he moves his eyebrows. High eyebrows usually denote emotions like surprise or happiness, whereas low furled brows usually denote anger or unhappiness. In short, eyebrows are a form of non-verbal communication.
Eyebrows also play a major part in identification. Eyebrows help us to identify and recognize individuals. You can test this theory yourself, by hiding the brows from a known person’s picture of the face – you will notice how difficult it becomes in recognizing the person.
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