Navigation Links
Aromatherapy may make you feel good, but it won't make you well

COLUMBUS, Ohio One of the most comprehensive investigations done to date on aromatherapy failed to show any improvement in either immune status, wound healing or pain control among people exposed to two often-touted scents.

While one of two popular aromas touted by alternative medicine practitioners lemon did appear to enhance moods positively among study subjects, the other lavender had no effect on reported mood, based on three psychological tests.

Neither lemon nor lavender showed any enhancement of the subjects immune status, nor did the compounds mitigate either pain or stress, based on a host of biochemical markers.

In some cases, even distilled water showed a more positive effect than lavender.

The study, published online in the journal Psychoneuroendocrinology, looked for evidence that such aromas go beyond increasing pleasure and actually have a positive medical impact on a persons health. While a massive commercial industry has embraced this notion in recent decades, little, if any, scientific proof has been offered supporting the products health claims.

We all know that the placebo effect can have a very strong impact on a persons health but beyond that, we wanted to see if these aromatic essential oils actually improved human health in some measurable way, explained Janice Kiecolt-Glaser, professor of psychiatry and psychology at Ohio State University and lead author of the study.

The researchers chose lemon and lavender since they were two of the most popular scents tied to aromatherapy. Recently, two other studies focused on these same two scents.

For the study, Kiecolt-Glaser; Ronald Glaser, a professor of molecular virology, immunology and medical genetics, and William Malarkey, professor of internal medicine, assembled a group of 56 healthy volunteers. These men and women were screened beforehand to confirm their ability to detect standard odors. Some were proponents of the merits of aromatherapy while others expressed no opinion on its use.

Each person took part in three half-day sessions where they were exposed to both scents. Participants were monitored for blood pressure and heart rate during the experiments, and the researchers took regular blood samples from each volunteer.

Researchers taped cotton balls laced with either lemon oil, lavender oil or distilled water below the volunteers noses for the duration of the tests.

The researchers tested volunteers ability to heal by using a standard test where tape is applied and removed repeatedly on a specific skin site. The scientists also tested volunteers reaction to pain by immersing their feet in 32-degree F water.

Lastly, volunteers were asked to fill out three standard psychological tests to gauge mood and stress three times during each session. They also were asked to record a two-minute reaction to the experience which was later analyzed to gauge positive or negative emotional-word use.

The blood samples were later analyzed for changes in several distinct biochemical markers that would signal affects on both the immune and endocrine system. Levels of both Interleukin-6 and Interleukin-10 two cytokines were checked, as were stress hormones such as cortisol, norepinephrine and other catacholomines.

While lemon oil showed a clear mood enhancement, lavender oil did not, the researchers said. Neither smell had any positive impact on any of the biochemical markers for stress, pain control or wound healing.

This is probably the most comprehensive study ever done in this area, but the human body is infinitely complex, explained Malarkey. If an individual patient uses these oils and feels better, theres no way we can prove it doesnt improve that persons health.

But we still failed to find any quantitative indication that these oils provide any physiological effect for people in general.

The wound healing experiments measured how fast the skin could repair itself, Glaser said. Keep in mind that a lot of things have to take place for that healing process to succeed. We measured a lot of complex physiological interactions instead of just a single marker, and still we saw no positive effect, he said.


Contact: Jan Kiecolt-Glaser
Ohio State University

Related medicine news :

1. Aromatherapy Gift Line Sheds Humorous Light on Modern Therapy
2. Giving emergency nurses aromatherapy massages with music dramatically reduced stress levels
3. Giving emergency nurses aromatherapy massages with music dramatically reduced stress levels
4. The Good, the Bad, and the Ugly of the Nunez/Perata Health Plan
5. Job picture for 2006 chemistry grads reasonably good, C&EN reports
Post Your Comments:
(Date:6/27/2016)... Overland Park, KS (PRWEB) , ... June 27, 2016 , ... ... leader in retailers of Eyeglasses . , Millions of individuals in the United ... life, eyeglasses have become a way to both correct vision and make a fashion ...
(Date:6/26/2016)... ... 2016 , ... PawPaws brand pet supplements owned by Whole Health ... the health of felines. The formula is all-natural and is made from Chinese herbs ... Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia ...
(Date:6/25/2016)... , ... June 25, 2016 , ... Austin residents seeking ... American College of Mohs Surgery and to Dr. Russell Peckham for medical and surgical ... effective treatment for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern Californian, Dr. Omkar ... M.D from the David Geffen School of Medicine at UCLA. He trained in Internal ... complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program where he had ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article published June ... with. The article goes on to state that individuals are now more comfortable seeking ... common operations such as calf and cheek reduction. The Los Angeles area medical group, ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016  Consumers have taken a more ... placed more emphasis on patient outcomes. ... in the pharmaceutical industry have evolved beyond just ... companies are focusing on becoming more patient-oriented across ... and services that improve health. ...
(Date:6/24/2016)... FRANCISCO, Calif. , June 24, 2016 /PRNewswire/ ... ), a biopharmaceutical company developing novel therapeutics for ... unmet needs, today announced the closing of its ... of common stock, at the public offering price ... in the offering were offered by GBT. GBT ...
(Date:6/24/2016)... -- Dublin ... the " Global Markets for Spectroscopy Equipment" ... This report focuses on the global market ... its applications in various applications. The report deals with ... main industries: pharmaceutical and biotechnology, food and beverage, and ...
Breaking Medicine Technology: