3 Traits That Make You Less Attractive, According to Science

Kelsey Clark

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The laws of attraction consistently inspire curiosity in men and women alike, especially given our increasingly unique dating landscape. With right-swipes quickly becoming the yardstick by which we measure attraction—a somewhat vague and subjective gauge—we're that much more intrigued by what people are scientifically attracted to at their core. Business Insider was equally as intrigued, identifying the interesting, science-backed actions and traits that make men and women less attracted to a potential partner. Here's what the BI team uncovered:

Not Having a Sense of Humour

If you ask a person about the top five qualities they look for in a partner, a sense of humour is most likely included in that list. A 2009 study actually found that having no sense of humour, or even an average sense of humour, was significantly less attractive than having a great sense of humour. 

Sleep Deprivation

As if sleep deprivation wasn't already bad enough, a lack of sleep could also make you appear less attractive to potential partners. This is substantiated by a 2010 study published on The BMJ, which asked participants to rate photos of people who had slept for eight hours the night before and people who hadn't slept in 31 hours. Unsurprisingly, the latter group was perceived as less attractive, less healthy, and even sadder.


According to a series of studies published in Evolution and Human Behaviour, traits like helpfulness and contribution to shared goals are at the heart of perceived attractiveness. The researchers found that, even for conventionally attractive participants, their rating went down considerably if they'd proven to be lazy.

Head over to Business Insider for more unattractive habits to be mindful of, and share your thoughts on the results below!

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