A study confirmed that a white and evenly spaced set of teeth make people seem more attractive.

 

The study, from researchers at the British universities of Leeds and Central Lancashire, found that teeth are "the human equivalent of a peacock’s tail," according to The Daily Mail.

 

They are a sign of health and good genetics that help select a mate.

 

 

Eating more fruits and vegetables is a natural way to make your skin look more attractive, a study from PLoS ONE showed.

 

Fruits and vegetables are loaded with antioxidants and plant-based pigments, which give skin a healthy hue.

 

Plus, the results are instant. Participants in the study had rosier cheeks and healthier looking skin with just an increase of one portion of fruit and vegetables a day.

 

 

Turns out, there's a reason that creep on the street is always asking you to smile.

 

Happiness is the most attractive emotion in females, a study called "Happy Guys Finish Last: The Impact of Emotion Expressions on Sexual Attraction" published in Emotion showed.

 

Researchers found that a simple smile causes men to find women more beautiful.

 

 

Brooding and swaggering men are much more attractive than men who are smiling, according to a study from the University of British Columbia. In fact, the women surveyed said happiness was the leastattractive quality in a man.

 

But the study was based only on "gut reactions on carnal, sexual attraction," one of the study's co-authors told The Daily Mail, not whether the men would make a good boyfriend or husband.

 

The study could explain why some women are attracted to the "bad boy" persona.