There are a lot of depressed women in the world. I can tell, because they’re wearing jeans.

According to a study conduced by Professor Karen Pine at the University of Hertfordshire in the U.K., women choose to wear clothes based on their emotional states. When surveyed, more than 50 percent of surveyed women said they wore jeans when depressed. One third of them only wore jeans when they were happy.

Match those jeans with a baggy top–57 percent of women said they wore those when depressed–and you have one really sad female.

If you want to change your mood, though, change your clothes. Yes, it’s really that simple. Science wouldn’t lie to you.

“This finding shows that clothing doesn’t just influence others, it reflects and influences the wearer’s mood too,” Pine said. “Many of the women in this study felt they could alter their mood by changing what they wore. This demonstrates the psychological power of clothing and how the right choices could influence a person’s happiness.”

Your happy clothes should enhance your figure, be well cut and made from bright and beautiful fabrics, says Pine, who obviously doesn’t know about Rocky Mountain jeans from the 1990s.

“Jeans don’t look great on everyone,” Pine said. “They are often poorly cut and badly fitting. Jeans can signal that the wearer hasn’t bothered with their appearance. People who are depressed often lose interest in how they look and don’t wish to stand out, so the correlation between depression and wearing jeans is understandable. Most importantly, this research suggests that we can dress for happiness, but that might mean ditching the jeans.”

While you’re ditching those jeans, you might want to watch your typing, too. New research shows that “words spelled with more letters on the right of the keyboard are associated with more positive emotions than words spelled with more letters on the left.” (Beautiful Mind moment: Jeans, the word, has more letters on a keyboard’s left side.)

Cognitive scientists Kyle Jasmin of University College London and Daniel Casasanto of The New School for Social Research, New York showed that there is a link between a word’s meaning and how it’s typed.

Why should the positions of the keys matter? The authors suggest that because there are more letters on the left of the keyboard midline than on the right, letters on the right might be easier to type, which could lead to positive feelings. In other words, when people type words composed of more right-side letters, they have more positive feelings, and when they type words composed of more left-side letters, they have more negative feelings.

Well, then, that explains the seesaw of emotions I’ve experienced writing this entry.

(Photo via Flickr: Kshitij Dewan / Creative Commons)