In a study to be published in the journal Biology of Reproduction, researchers collected samples from the underarms of men who refrained from using deodorant for four weeks. The extracts were then blended and applied to the upper lips of 18 women, aged 25 to 45.
Ew. Also, I wonder whether it being male sweat made a difference. Female sweat might have worked as well. Oh, and did I say, "ew"?