Oh Less ! What you like ?
My mum always told me hair grows in warm places so always made sense to me,suppose that on top of your head keeps you warm because heat is lost quickest through your head >>> you must be feeling cold these days Less..
Your information about Pheromones is probably the answer as with under the armpits, and sweat supposed to be attractive to the opposite sex ... huh, as if !!
Don't wish to talk about it any more thank you very much. !