Women Smell of Onion; Men of Cheese {The 5th Sense in the News}

A humorous-sounding scientific finding which comes across as the olfactory equivalent of "Women are from Venus and Men are from Mars" reveals that each sex emits different scents in the armpit region when it is subjected to bacteria action...

"Women smell of onion and men smell of cheese, according to scientists at flavours and fragrances specialist Firmenich.

Research carried out by the Geneva-based company investigated the armpit odours of men and women and found that the samples from women contained high amounts of an odourless sulphur-containing compound, which 
was transformed into a chemical called thiol, renowned for its onion-like smell, when mixed with bacteria found under the arm."