I read a study where they experimented on college students. Men were asked to wear a T-shirt for 1 week and then these T shirts were placed in boxes. Females were asked to sniff the shirts and rank the odor in order of attractiveness. Interestingly enough, when the students were related in any way (biologically) they rated the odor as terrible. The further away they were genetically, the higher the attractiveness rank. Most women found the smell "very attractive". So mother nature protects us from having sex with someone genetically close to us and uses those pheromones to attract a suitable mate. Now, they didn't do an alternate study with women's panties, but my guess is it would have the same result. (I know, some think that is gross but..hey, it's part of the human condition) i do love me a sweaty man. And i have heard the same thing as Pappy..if a girl wants a date, she should go out when she is ovulating and put some juice behind her ear and she'll be amazed at the results. I know when i am ovulating i have a different scent. So it must be those pheromones.