Is she?

Her name is Dr Brooke Magnanti. Her specialist areas are developmental neurotoxicology and cancer epidemiology. She has a PhD in informatics, epidemiology and forensic science and is now working at the Bristol Initiative for Research of Child Health. She is part of a team researching the effects of exposure to the pesticide chlorpyrifos on foetuses and infants.

From 2003 to late 2004, Brooke worked as a prostitute via a London escort agency; she started blogging as Belle de Jour — after the Buñuel film starring Catherine Deneuve as a well-to-do housewife who has sex for money because she’s bored — shortly into her career as a call girl, after an incident she thought funny enough to write down.
[I’m Belle de Jour via Ioana Calen]