Want to Feel Smart? Shove a Sprig of Rosemary Up Your Nose

OK, you don't actually have to shove rosemary all the way up into your nose, but a new study has found that smelling it improves your cognitive performance. British researchers exposed 20 volunteers to different levels of rosemary aromas, then assessed their cognitive performance and mood. They also did blood tests to… » 2/28/12 11:15pm 2/28/12 11:15pm