People are perceived to be more attractive when in a group because any facial asymmetries or other imperfections appear less noticeable, research suggests. This has been dubbed “the cheerleader effect." Researchers believe that when multiple faces are in a group, the viewer's visual system combines all of the collective features and averages them out, which typically results in a face that is more attractive because all of the individual imperfections are diluted. When the visual system sees the face of just one person, it is able to focus more closely on all of the individual asymmetries or disproportionate features and judge that person's attractiveness more harshly.
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