Researchers Reveal 5 Essential Oils that Calm Anxiety and Relieve Stress

essential oilsHealth

The History of Aromatherapy

Humans have been using aromatic oils to treat various medical ailments for hundreds (perhaps thousands) of years. The use of “essential oils” to improve one’s psychological state likely began in China. Of course, they did not have that modern label. Literature suggests that the essential oils predominantly treated general pain, sleep disturbances, and, of course, anxiety and stress.

“Although essential oils have been used therapeutically for centuries, there is little published research on many of them. However, this is beginning to change as more scientific studies on essential oils are conducted around the world.” – The University of Minnesota

The ancient Greeks and Egyptians, too, contributed to the history of aromatherapy by inventing new aromas, along with simple devices for manufacturing essential oils from plants, flowers, and other natural sources. The Egyptians discovered a number of scents still in use today. In Greece, the “Father of Medicine,” Hippocrates, might have practiced what we now know as aromatherapy for self-healing.

The word “aromatherapy” was first used in 1937 by French chemist Rene-Maurine Gattefosse. Gattefosse suffered severe burns and was interested in the topical (“applied to the skin”) healing power of essential oils. After Gattefosse successfully healed his wounds using lavender oil, French surgeons began using essential oils to treat injured troops during World War II. Shortly after this period, the benefits of essential oils grew much more well known.

The popularity of aromatherapy is on the rise and is now one of the fastest growing complementary therapies in the world. Compared to modern medical treatments, aromatherapy and essential oil applications are inexpensive, relatively safe, and easily accessible. Couple these benefits with much research on the effectiveness of aromatherapy, and it appears that this alternative treatment will continue to gain acceptance – and a wide following.

In this article, we’ll talk about the research behind aromatherapy, and then discuss five essential oils that calm anxiety and reduce stress.

The Science of Essential Oils and Aromatherapy

“Research…on essential oils show positive effects for a variety of health concerns including infections, pain, anxiety, depression, tumors, premenstrual syndrome, nausea, and many others.” – The University of Minnesota

The U.S. – and some other Western countries – are quite skittish when it comes to “alternative” or “complementary” medicine. Much of this reluctance is attributable to the invasion of medicine by profit seekers, especially pharmaceutical companies. If it doesn’t come in the form of a pill in a brown bottle, we’re skeptical.

Nevermind that much (not all) of this skepticism is entirely baseless. In fact, you can find significant evidence – hundreds of peer-reviewed, double-blind studies published in prestigious medical journals – concluding that essential oils and aromatherapy do have certain medical benefits.

Here a few noteworthy studies:

– Per a study published in the journal Phytomedicine, researchers found that an oral lavender capsule, taken over a six-week period, reduced the symptoms of Generalized Anxiety Disorder (GAD) to a degree “comparable to a common benzodiazepine (lorazepam.)” Lorazepam, a potent but dangerous medicine, is one of the most commonly prescribed drugs for people with GAD and other anxiety conditions. (1)

– In a study published in the journal Letters in Applied Microbiology, researchers conclude that the natural topical essential oil called Polytoxinol – a mix of eucalyptus, tea tree, lemon, thyme, cloves, and alcohol – successfully prevents the buildup (called ‘biofilm’) of Staphylococcus aureus. Because it was researched and manufactured in Australia, some practitioners have taken to calling Polytoxinol “Australia’s gift to the world.” (2,3)

– A groundbreaking U.K. study published in the Journal of Clinical Psychiatry cites the effectiveness of lemon balm (Melissa officinalis) in reducing behavioral and psychological symptoms in dementia patients. The placebo-controlled study found that 60 percent of patients taking the active treatment form of lemon balm had their symptoms reduced by an equivalent of 35 percent. (4)

The 5 Essential Oils

Now that we’ve talked a bit about the history of essentials oils and some of the research legitimizing their use let’s discuss five of the best essential oils for relieving stress and anxiety!

(Please note: we’ve included the Latin names of each to serve as a reference. When shopping for a product, look for the species in italics next to the English name.)

1. Lavender (Lavandula angustifolia)

Lavandula is a genus of flowering plants within the mint family. The 47 known species of lavender are native to and grow throughout areas of East Africa, Southwest Asia, the Mediterranean, and many parts of Europe.

By and large, commercial enterprises harvest lavender to manufacture the essential oil of lavender. Besides being used as a favorite fragrance, lavender has many medicinal properties, including its effectiveness as a natural anti-inflammatory and antiseptic. Among all essential oils, lavender is probably the most widely adopted and, consequently, the most well researched.

A growing amount of evidence suggests some species of lavender as effective in treating certain neurological and psychological disorders. Lavender oil (from the flowers of Lavandula angustifolia) is believed to act on the brain’s limbic system, most notably the amygdala and hippocampus. The amygdala is the area of the brain responsible for the “fight-or-flight” response, while the hippocampus, among other processes, helps with emotional regulation and mood stabilization.

In a study published in the journal International Clinical Psychopharmacology, researchers found that oral administration 80 mg per day of Silexan – a lavender oil preparation –  significantly reduces the symptoms of both generalized anxiety disorder and subsyndromal anxiety disorder. Lavender was also found to relieve symptoms of sleep disturbance and restlessness in some patients. (5)

lavender lemonade

2. Rosemary (Rosmarinus Officinalis)

Native to the Mediterranean, rosemary is an evergreen shrub with needle-like leaves. Flowers of blue, pink, purple, or white sprout from the shrub. Commercially, the entirety of the plant’s make-up – flower, leaves, and twigs – are extracted for use. Due to its attractive appearance, longevity, and pest-resistant properties, rosemary serves as decorative landscaping. In the Mediterranean regions, people use rosemary to flavor food and make herbal tea.

Medicinally, Rosmarinus Officinalis is thought to improve sleep quality and potentially reduce symptoms of anxiety and depression via hormone regulation. A 2018 double-blind, controlled study of college-aged students, published in the journal Complementary Therapies in Clinical Practice, concluded that the essential oil of rosemary might also have cognitive benefits, mainly as a memory enhancer. (6)

3. Chamomile (Matricaria recutita)

Also referred to as German, Italian, and Hungarian chamomile, scented mayweed and wild chamomile, Matricaria recutita is the most commonly cultivated variety of the flower.

In a 2009 double-blind, controlled study, researchers found a “significantly greater reduction” in symptoms of depression for the M. Recutita group than the placebo group. Such findings are significant for both alternative medicine practitioners and patients, as anxiety disorders often exist in conjunction with clinical depression.

The authors of the study also note that the evidence present in the paper coincides with “previously observed anxiolytic (‘anti-anxiety’ activity)” from a study undertaken by a research unit at the University of Pennsylvania. (7)

Other medicinal uses for chamomile include gastrointestinal (GI) disorders, hay fever, hemorrhoids, inflammation, insomnia, menstrual disorders, muscle spasms, and rheumatic pain. (8)

4. Sweet Orange Oil (Citrus sinensis)

A “newcomer” compared to the other oils mentioned, sweet orange essential oil is growing in popularity among aromatherapists and alternative medicine practitioners. Extracted from wild orange trees, Citrus sinensis shows tremendous promise as a natural treatment for multiple conditions. One such condition includes post-traumatic stress disorder (PTSD) – a debilitating anxiety condition affecting around 8 percent of the U.S. population.

Cassandra Moshfegh, lead author of a 2017 study by George Washington University researchers, states, “…The orange essential plant oil showed a significant effect on the behavioral response…This is promising because it shows that passively inhaling this essential oil could potentially assuage PTSD symptoms in humans.” (9)

In another important study, published in the Iranian Journal of Nursing and Midwifery Research, women in labor who inhaled C. Sinensis reported a lower feeling of anxiety and stress than women who did not. (10)

5. Bergamot (Citrus bergamia)

essential oils

Speaking of citrus essential oils, here’s another! Bergamot is a variety of orange. While roughly the same size as the orange fruit we knew well, bergamot comes in green or yellow. Bergamot, not as widely available as other oils on this list, has limited production. Coastal areas of Italy, Algeria, Argentina, Brazil, Morocco, Tunisia, Turkey, and parts of Southeast Asia produce this oil.

Multiple studies attest to the effectiveness of Bergamot aromatherapy in the treatment of anxiety and stress disorders. In an 8-week trial study, published in the journal Phytotherapy Research, mental health patients who inhaled C. bergamia in the waiting room of a treatment center reported more “positive feelings” than other patients. (11)

In another study, researchers aimed to compare aromatherapy methods. They specifically considered the inhalation of Bergamot essential oil with and without water vapor as a compliment. To accomplish this, researchers gathered and analyzed each participant’s cortisol (stress-hormone) levels via saliva samples. Data analysis of the samples showed reduced levels of cortisol among those treated, interpreted as a clinical sign of lower stress levels. Besides collecting biological data, researchers issued clinical tests measuring mood state, anxiety levels, and fatigue. The results coincided with the cortisol tests in that participants demonstrated significantly improved mind states. (12)

 
Sources
https://www.ncbi.nlm.nih.gov/pubmed/19962288
https://www.ncbi.nlm.nih.gov/pubmed/15960752
https://www.theguardian.com/world/2001/may/14/worlddispatch.research
https://www.ncbi.nlm.nih.gov/pubmed/12143909
https://www.hindawi.com/journals/ecam/2013/681304/
https://www.sciencedirect.com/science/article/pii/S1744388117304723
https://www.ncbi.nlm.nih.gov/pubmed/22894890
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2995283/
https://www.eurekalert.org/pub_releases/2017-04/eb2-oeo041217.php
https://www.health.com/anxiety/essential-oils-for-anxiety
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5434918/
https://www.ncbi.nlm.nih.gov/pubmed/25824404

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