The Useless Digest A Free Weekly dose of Facts, Quotes, History and more - direct to your inbox. Those tiny, little hairs above our eyes that many women either pluck, paint, pierce or tattoo play a very important role in keeping moisture out of our eyes. Just like an umbrella keeps our bodies dry from the rain, our hairy eyebrows keep our eyes dry from rain or sweat. When it's pouring rain outside or when sweat drips down from our foreheads, our eyebrows divert the flow of water or sweat away from our eyes. By catching the water or sweat, 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 also.
As one of our most expressive facial features, eyebrows help us determine how people are feeling without ever really asking them. If a person's eyebrows are frowning, chances are they are mad or upset. Thick, hairy and big eyebrows tend to be characterized as unattractive while thin and plucked eyebrows are said to be more attractive.