'Research from the Center for Work-Life Policy shows mid-level, professional women need powerful, senior executives to help promote them to the next level of management.

The problem is this: More often than not, superiors are males who are married.

Enter, sex.

In that same CWLP study, 34% of executive women claim they know a female colleague who has had an affair with a boss. Furthermore, 15% of women at the director level or above admitted to having affairs themselves.

And worse, 37% claim the action was rewarded: they said that women involved in affairs received a career boost as a result.'

http://www.businessinsider.com/sex-is-killing-the-workplace-2010-8