These 7 things make you unattractive

Researchers from Sweden and the Netherlands have found that people who get at least eight hours of sleep every night appear more attractive. A pale face, red eyes, or dark circles under the eyes are (oh, wonder!) considered unattractive. These are all characteristics that are the result of too little sleep. Logical, isn't it?

Why should a bad mood or a mean expression also be attractive?! In a study by Chinese scientists, subjects were asked to look at photos of people with different facial expressions and categorize them as "bad," "mean," "decent," and "nice. People who were assigned to the last two categories were subsequently considered attractive by a majority. So: kindness and beauty obviously belong together!

Stress has an impact on our minds. But researchers from South Africa, Finland, Great Britain, Estonia, and Latvia have found that it also impacts your external appearance. This is because women with high cortisol levels (the stress hormone) were rated as less attractive by male subjects - without the subjects knowing how high the woman's respective cortisol level was. The scientists explained this: A low cortisol level indicates health, which is ultimately also reflected in your attractiveness.

A study by the University of California in San Diego shows exciting results: People who had no sense of humor or a poor sense of humor were basically rated as unattractive. Enough reason to drop the doggedness and enjoy life with more joy!

Everyone is lazy now and then. However, studies conducted by the University of Wisconsin in Madison and the State University of New York in Binghamton have now shown that attractiveness is often associated with the terms "industriousness", "modesty" or "helpfulness". Conversely, all the results explored are the opposite of laziness - which apparently makes you unattractive to others.

This result has nothing to do with fundamentally bad body odor. Rather, it is about unconscious odors. Scientists have come to a pretty crazy conclusion in a study: Potential partners who smell too similar or too different are more likely to find each other unattractive. Why is that? It's an evolutionary phenomenon. Two people who are genetically too similar or too different find each other unattractive. That's where the saying "can't smell each other" comes in pretty handy.

What we could probably have guessed long ago has been proven by Belgian researchers. In the study, people who smoke or drink alcohol regularly were unsuitable for long-term relationships.