Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Brain & Nervous System Health Center

Font Size

Can the Scent of Rosemary Make You Smarter?

The Scent of Rosemary Oil May Improve Speed and Accuracy During Mental Tasks
WebMD Health News
Reviewed by Louise Chang, MD

Feb. 24, 2012 -- Can a whiff of rosemary boost your performance at work or school?

It’s possible. A new study suggests that the pungent and pine-like scent of rosemary oil may improve speed and accuracy when performing certain mental tasks.

Twenty people were asked to perform subtraction exercises and a task to see how quickly they could process new information before and after being exposed to the scent of rosemary in their work stations. Researchers measured participants’ blood levels of 1, 8-cineole, rosemary's main chemical component, after the experiment.

The higher their blood levels of this compound, the better the participants scored on these tasks, the study shows. Speed and accuracy got better, but the oil did not seem to improve alertness. Exactly how rosemary can improve mental ability is not fully understood.

The findings are published in Therapeutic Advances in Psychopharmacology.

Alan Hirsch, MD, is the director of the Smell and Taste Treatment and Research Foundation in Chicago. He says the findings take aromatherapy to a whole new level. “This opens up the doorway for us to explore other odors and how they affect people,” he says.

So, should we place some rosemary-scented potpourri in our work station?

“It is something to think about if you want to improve your learning, as long as you like the smell of rosemary,” Hirsch tells WebMD.

More Research on Rosemary’s Brain-Boosting Effects Needed

Christy C. Tangney, PhD, says more study is needed to see how, or even if, rosemary affects how quickly and accurately we perform mental exercises. She is an associate professor in the department of clinical nutrition at Rush University Medical Center in Chicago. “This is an intriguing concept, but very preliminary,” she says.

The findings could be due to chance or something else besides the fragrance. “There is something here. I don’t know that I could conclude that it is the aroma of the rosemary that is associated with improvements though,” Tangney says.

She agrees with Hirsch. If you like the scent of rosemary, there is no reason not to surround yourself with it. “Rosemary has been used as an herb for generations, and there is nothing to say it is potentially harmful, at least in the short term.”

Today on WebMD

nerve damage
Learn how this disease affects the nervous system.
senior woman with lost expression
Know the early warning signs.
woman in art gallery
Tips to stay smart, sharp, and focused.
medical marijuana plant
What is it used for?
senior man
boy hits soccer ball with head
red and white swirl
marijuana plant
brain illustration stroke
nerve damage
Alzheimers Overview
Graphic of number filled head and dna double helix