Things That Can Make You Less Attractive, According To Science

Being mean
Do nice guys really finish last? For a 2014 Chinese study, researchers had men and women look at photos of other people, all displaying neutral expressions. Some of those photos were accompanied by the Chinese words for "decent" and honest"; the others were accompanied by the Chinese words for "evil" and "mean"; still others weren't accompanied by any information. Participants ended up rating people least attractive when they were described as evil and mean.