Surprising Things That Make You Less Attractive to the Opposite Gender

We all think we know what makes someone attractive. Confidence, a nice smile, maybe good style — stuff we’ve been told works since high school.

But when it comes down to it, attraction isn’t always about what looks good on paper. A lot of what we think is appealing might actually be doing us more harm than good, at least if science has anything to say about it.

Turns out, researchers have been digging into what really makes people desirable, and the answers aren’t what you’d expect.

From how much facial hair you should keep to what your lunch says about your dating life, there’s a whole world of surprising factors that play into how attractive you’re seen. And spoiler alert: most of us are probably getting at least a few of them wrong.

Being happy

If we were to analyze the topic, most people would likely believe that happiness is strongly linked to how attractive someone appears.

Interestingly, the reverse holds true for men, who are generally more drawn to women who appear happy and smile often. Naturally speaking, appearing happy seems like an obvious advantage in the world of dating.

But interestingly, science suggests otherwise, at least when it comes to women. It suggests to a potential match that your life is stable, while also hinting at emotional and financial stability.

A particular study from researchers at the University of British Columbia revealed that initially, men who seem cheerful or smiling are actually rated lower than those with a more serious look.

Too much or too little facial hair

Styles have ranged from fully clean-shaven to growing facial hair long enough to rival someone living off the grid. As one study discovered, most people actually aren’t getting it quite right.

Both men and women, however, shared the view that a clean-shaven look is the least attractive option. Just how much facial hair is considered attractive has shifted throughout history.

Men, on the other hand, viewed fuller beards as the most desirable. A universal agreement on the matter, though, still hasn’t been reached.

The level of beard growth seen as most appealing wasn’t a full beard (despite what Instagram trends suggest) or a smooth, clean-shaven face. It fell somewhere in the range of heavy stubble.

Smelling similar

The way you smell can strongly impact how your dates go, since scent is closely tied to your health and cleanliness. Many scientists and experts have discovered that we often find people who have a scent similar to ours to be less attractive.

A foul odor signals a higher risk of bacteria or parasites, which makes you less appealing as a potential partner. While that may sound odd, it actually makes a lot of sense.

Numerous studies have shown that scent plays a key part in human interaction, especially when it comes to romance. We’re wired by evolution to avoid mating with individuals from our own gene pool.

That’s not the whole story, as scent influences attractiveness in more subtle ways, too. It’s nature’s way of preventing you from unknowingly hooking up with a distant relative.

Eating processed carbohydrates

We don’t usually think of food as having any impact on attractiveness, aside from whatever meal you choose during a date. But according to one study, diet affects attraction in other ways as well (specifically when it comes to women).

It discovered that men who consume plenty of fruits and vegetables give off a more pleasant scent to women compared to those who eat lots of processed carbs — like pizza and pasta.

Even then, the only influence it might have is if something gets stuck in your teeth, which could turn someone off. Interestingly, men with diets high in meat weren’t seen as more or less attractive than anyone else.

Having confidence

Confidence signals that you’re in control and not shy about going after what you want, both seen as key traits for maintaining a relationship.

If certain studies are accurate, though, confidence might not be as appealing as we’ve been led to think. Online articles and dating sites have been promoting the perks of looking confident since they first started.

This isn’t even about being overconfident; participants in studies have consistently favored humility at any level, as it suggests you’d be kind to your partner and more flexible in the relationship.

And it’s not just a single study — growing research on the topic shows that people are more drawn to humility than to plain confidence.

Final thoughts

At the end of the day, attraction isn’t as straightforward as we’d like to believe. What we think should matter — like being happy, confident, or clean-shaven — doesn’t always align with what people actually respond to.

Evolutionary instincts, subconscious signals, and even what you had for lunch can play a bigger role than the things you’ve been told matter the most.

And while trends shift and preferences evolve, there’s still a lot we don’t fully understand about what makes someone truly desirable.

The takeaway here isn’t to fake a brooding look or binge on salad for a date — it’s to realize that attraction works in more unexpected ways than most advice columns will ever admit.

It’s not just about looks or personality on the surface, but all the little things we overlook — like scent, tone, and even a bit of stubble.

So the next time you’re overthinking a date, maybe skip the self-help blog and remember that biology’s pulling more strings than you think.

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This post was previously published on medium.com.

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