Till you bring a link for this I rather tend to think your prof meant this study:
(and it's not talking about polish women)independent.co.uk/news/science/the-face-of-the-future-why-eurasians-are-changing-the-rules-of-attraction-523076.html
...But new research appears to turn this theory on its head. Scientists now believe that people of mixed race, particularly Eurasians, possess certain genetic advantages that lead to greater health and, as a result, increased attractiveness.
Then there is that:
guardian.co.uk/science/2008/jul/22/sciencenews.psychology
Psychology: People in wealthy areas perceived to be most attractive
This:
telegraph.co.uk/scienceandtechnology/science/sciencenews/3349823/Why-short-women-with-long-legs-are-the-most-attractive.html
Short women with long legs are the most naturally attractive to men, according to a new study.
And of course this:
en.wikipedia.org/wiki/Physical_attractiveness#Determinants_of_female_physical_attractiveness