] 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. ] ] The women rated their moods on a fixed scale for a period ] of six hours. The findings suggested something in the ] perspiration brightened their moods and helped them feel ] less tense. Blood analyses also showed a rise in levels ] of the reproductive luteinizing hormone that typically ] surge before ovulation. Study: Male sweat brightens women's moods |