The first man is white, 5ft 5ins, of skinny build and has medium-length, dark hair.

BBC: Fire extinguisher thrown from North Bridge in Edinburgh

She is described as being black, about 5ft 5ins, of medium build and with shoulder-length black hair which may have been enhanced with hair extensions.

BBC: London

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