Correlation found between beards and academia...

The Telegraph reports:

A correlation between having a beard and being a professor has been uncovered by scientists, suggesting a reason for discrimination against women in academia.
A study of 1,800 male academics has revealed professors are twice as likely as lecturers to have bristles.

My personal theory is that women tend to be far too sane and balanced (in general) to become top-ranking academics who (in general) tend to be bonkers.