Rosemary is for remembrance
In addition, the article claims that peppermint tea can improve alertness while chamomile does indeed provide a calming effect. Lavender, though, impairs the memory.
And it looks like I should reduce my use of lavender even though it's my favourite scent. But lavender apparently helps one to rest and sleep. Maybe it helps you forget about the day and makes you more relaxed and help you then to be restful. I only hope the memory impairment is temporary.
Click here for the article.