According to Mark Moss, a researcher at Northumbria University in the UK, the smell of rosemary can help improve memory.
The research team had 40 pupils aged 10 to 11 do a series of memory tests in a room either with a rosemary aroma or without. At the time, the pupils were unaware that the aroma was related in any way with the memory tests.
Moss says that the students who did the memory tests in the room with the rosemary aroma performed between 5 to 7 percent better in the memory tests, a result consistent with tests involving adults. The study results support traditional beliefs concerning the beneficial effects of rosemary on memory. He says that rosemary has been linked to memory for centuries.
However, he also says that the degree of the effect varies from person to person, with hardly any effect seen in some people. He says that he will now widen the research, carrying out a large scale study on the effects of aroma in educational settings.
Source article: http://www.taipeitimes.com/News/lang/archives/2017/05/11/2003670321