According to science, these 7 things make you less attractive

Sleep deprivation is one of them

When it comes to love, you'll have read numerous dating rules and had more than enough dating advice from your seemingly happy shacked up friends but what should you really look out for?

Well, according to science, this is what you need to stop doing now to up your attractiveness...

7 things that make you less attractive

Sleep deprivation

Researchers from Sweden and the Netherlands saw that people who slept for at least eight hours the night before were deemed most attractive with their insomnia-ridden counterparts guilty of having 'droopy/hanging eyelids, red eyes, dark circles under the eyes, and pale skin.'

Being mean

A Chinese study proved that people looking at photos of women and men with neutral expressions (but words accompanied next to them like 'evil', 'mean', 'decent' and 'honest' always deemed the nicer ones as more attractive, so there you have it, don't be mean.

Stressing out

A study by researchers in South Africa, Finland, UK, Estonia and Latvia found that women with high levels of cortisol (the stress hormone) were seen as less attractive even though the men did not know the women's cortisol levels. Scientists have said that this is because low cortisol levels indicate a person's health and, if you're thinking in evolutionary terms, fertility.

Taking yourself too seriously

A study by the University of California at San Diego found that a poor sense of humour was unattractive in both men and women to both genders.

Laziness

A study from the University of Wisconsin at Madison and the State University of New York at Binghamton saw that attractiveness is often correlated with traits including kindness, modesty and also helpfulness. So, people who are seen as not hardworking or uncooperative or messy were rated less attractive.

Your smell

Science says that apparently if you smell too similar (or too different) from a potential partner that it might put them off. Why is this? It's because evolutionarily, we don't want to be too similar or too different from someone genetically and body odour is a factor in this judgement.

Smoking and drinking

Researchers in Belgium found that men whose bios indicated that they smoked or drank a lot were considered less attractive for long-term relationships.

So, there you have it. And, if you take one thing from this, just being a nice person will get you pretty far...