Body odor issues? Don't blame your deodorant, blame your body hair. A Procter & Gamble Co. study that included a scientist with its Gillette razor division found that men can reduce body odor by shaving the hair from their armpits. No doubt that P&G will use the data to push for more manscaping among Gillette users.   According to a study published in the March issue of the Journal of Cosmetic Dermatology, bacteria on armpit hair and skin transform odorless sweat into “vol...