In another study, long and medium-length hair improved male raters' evaluation of female subjects' health.

CNN: The 5 biggest hair myths and one unfortunate truth

The new rules unveiled Monday require underwriters selling short and medium-length corporate bonds to set prices that are close to those on bonds that currently trade in the secondary markets, said the three people.

WSJ: China Tightens Rules on Bond Issuance

In one study, women's images were digitally altered to give them short, long, and medium-length hair.

CNN: The 5 biggest hair myths and one unfortunate truth

Sometimes this is about content, in terms of shooting in a different way, perhaps using film rather than digital, or medium format, or just using shorter focal length lenses, and at other times it's more about packaging the story in a different way.

BBC: Drowning in pictures