Lavender Has Fields of Uses
Colorful Description
On my friend’s farm in central Colorado grows rows of lavender, and by mid-summer its flowers fragrantly scent nearby fields. While working on the farm, I find my spirits lifted and happy despite the intense heat and my tiring muscles. It is no wonder that for much of history, lavender has been used in sachets and oils alike to bring pleasure as well s reduce stress and anxiety. Other traditional therapeutic uses include as a sleep-aid, relief from pain and headaches, an anti-inflammatory, treatment for cough and respiratory infection, and as an insect repellent as well as a perfume. Greeks, Romans and Egyptians alike have all recorded using lavender in various remedies. Today, lavender is mostly used in the same way - widely used to dress wounds, induce sleep, ease depression and reduce stress. It can also be found in ingredients of teas and culinary dishes and of course the delightful scent in perfume. Current research is investigating the antimicrobial as well as anti-cancer properties of lavender essential oil.
Although generally known as lavender, there are actually thirty-nine species of the genus Lavendula, yet only a handful is used commercially. This fragrant plant is native to the Mediterranean region south to tropical Africa and to the southeast region of India. Today lavender is successfully cultivated in southern Europe, Australia and the United States. Aromatherapists distinguish lavender species according to their therapeutic uses and medicinal properties. True lavender (L. officinalis, L. angustifolia) when distilled at high elevations is known for its large percentage of ester content and regarded as the best in quality. Uses for true lavender include cases involving anxiety, stress, small burns, cuts and insect bites. Spike lavender (L. spica, L. latifolia) is known for its camphor content and thus used for respiratory infections, for muscular aches and pains and as a possible stimulant. Lavendin (L.fragrans, L. burnatti) is a hybrid of true lavender (L. angustifolia) and spike lavender (L. latifolia) and commonly used for large-scale commercial purposes. Stoechas lavender (L. stoechas) is used as an expectorant and known for its antimicrobial properties.
Reducing Anxiety
Lavender is well recognized as an agent able to support a reduction in anxiety, mainly due to its high linalool levels. The physiological process of reducing anxiety through the use of essential oils is quite phenomenal. Once the diffused molecules of essential oil enter the nasal cavity, they bind to receptor sites of the olfactory neurons which then trigger a cascade of events. In short, the olfactory neurons send messages to the olfactory nerve and then onto the olfactory bulb (located just three inches from the brain) where messages are initially processed. Within the olfactory bulb are input and output stations, the glomeruli and M/T (mitral and tufted) cells respectively. The olfactory output from the bulb to the brain has several targets, mainly the primary olfactory cortex and the higher olfactory associated areas where olfactory discrimination, perception and memories take place. The other is the limbic system, sometimes referred to the ‘nose’ brain comprising a complex system of 122 regions and associated areas which together is heavily responsible for the expression of emotion. Main structures of the limbic system (LS) are the amygdala, septum, hippocampus, anterior thalamus, and hypothalamus.
True lavender (L. angusifolia) is thought to have a sedative effect on the amygdala, which is considered to plays a role in processing emotion as well as governing emotional response and greatly responsible for the sensation of fear. Recent science studies looking at anxiolytic (anti-anxiety) propensities of lavender are numerous. A University of Central Lancashire, UK study (J Ethnopharmacol. 2007 May 22; 111(3): 517-25) investigated the effects of lavender odor inhalation on the behavior of gerbils (a type of rodent often used in laboratory research) and noted that exposure to lavender may have an anxiolytic effect in gerbils similar to that of the common anti-anxiety medication diazepam. A recent study published in Holistic Nursing Practice (2009 Mar-Apr; 23(2): 88-93) concluded that the use of lavender (as well as rosemary) essential oil sachets reduced stress-taking anxiety for graduate nursing students. Also in 2009, a study published in Community Dentistry and Oral Epidemiology (Nov 23) found that dental patients who were exposed to lavender scent had a reduction in their forthcoming procedure.
Other Applications for Lavender
A rather haphazard discovery of lavender in the use of tissue regeneration was made by the late Dr. Rene-Maurice Gattefosse (a French cosmetic chemist) who after he severely burned his hands in a laboratory accident, submerged them in a container of lavender essential oil and noted the remarkable speed at which they healed. More recent research has newly discovered the possible antimutagenic (inhibits mutations) effect of lavender. In this study (Food and Chemical Toxicology 2005 Sept; 4319: 1381-7) scientists noted antimutagenic effects of lavender oil (L. angustifolia) on a strain of Salmonella bacteria, concluding that such uses of lavender may be promising for applications in modern human healthcare. Other uses, such as antimicrobial and antiviral have been recognized and supported on the University of Maryland Medical Center website (www.umm.edu).
Conclusion
The physiological pathway for molecules of lavender essential oil to reach the brain is remarkable. By following the molecular trail into the nasal cavity and its subsequent neurological reactions, one can better appreciate the recognized stress-reducing qualities found in lavender. Traditional uses of lavender are now being investigated and their diverse applications more fully understood. With science now uncovering the specialization of olfactory receptor sites for certain scent molecules, aromatherapy becomes an even more valuable remedy for maintaining wellness. We would all do well to familiarize ourselves and perhaps re-remember what our ancient brain (the limbic area) has stored for thousands, even millions of years- molecules of scent, and in this case lavender, are powerful and effective.
Read more about the use of natural botanicals for skin care.
Tags: Alternative Health, Alternative Medicine, aromatherapy, disease, essential oils, health, herbs, illness, massage, natural health, natural medicine, skin care, Wellness