Ayurvedic

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Ayurveda (Sanskrit Āyurveda आयुर्वेद, "life-knowledge"; English pronunciation /ˌ.ərˈvdə/[1]) or Ayurvedic medicine is a system of traditional medicine native to the Indian subcontinent and a form of alternative medicine. The oldest known ayurvedic texts are the Suśrutha Saṃhitā and the Charaka Saṃhitā.[2] These Classical Sanskrit texts are among the foundational and formally compiled works of ayurveda.


By the medieval period, ayurvedic practitioners developed a number of medicinal preparations and surgical procedures for the treatment of various ailments.[3] Current practices derived (or reportedly derived) from ayurvedic medicine are regarded as part of complementary and alternative medicine,[4] and, along with siddha and Traditional Chinese medicine, form the basis for systems medicine.[5]

Safety concerns have been raised about Ayurveda; for instance, two US studies found that about 20 percent of Ayurvedic US and Indian-manufactured patent medicines sold via internet contained toxic levels of heavy metals such as lead, mercury and arsenic. Other concerns include the use of herbs containing toxic compounds and the lack of quality control in Ayurvedic facilities.[6][7] Mostly Ayurvedic products are not approved by US Food and Drug Administration. There is an import alert on some Ayurvedic medicines issued by US FDA since 2007 which prevents these products entering the US.[8]

Eight components of Ayurveda

In classical Sanskrit literature, Ayurveda was called "the science of eight components" (Sanskrit aṣṭāṅga अष्टांग), a classification that became canonical for ayurveda. They are:[9][10]

Principles and terminology


Descriptively, one may either focus on the historical foundation from the evidence of the earliest ayurvedic texts of the early centuries of the Common Era, or alternatively a description may take an ethnographic approach and focus on the forms of traditional medicine prevalent across India today.

Much like the medicine of classical antiquity, Ayurveda had historically taken the approach of enumerating bodily substances in the framework of the five classical elements (Sanskrit [maha]panchabhuta, viz. earth, water, fire, air and aether. According to Ayurveda, there are seven tissues dhatu. They are plasma (rasa), blood (rakta), muscles (maṃsa), fat (meda), bone (asthi), marrow (majja), and semen (shukra).[12]

Further information: Mahābhūta

Ayurveda states that a balance of three elemental substances Dosha is health and imbalance as disease. The dosha are three and they are Vata, Pitta and Kapha. One Ayurvedic theory states that each human possesses a unique combination of these doshas that define that person's temperament and characteristics. Each person has a natural state, or natural combination of these three elements, and should seek balance by modulating their behavior or environment. In this way they can increase or decrease the doshas they lack or in abundance of respectively. Another view, present in the ancient literature, states that dosha equality is identical to health, and that persons with imbalance of dosha are proportionately unhealthy, and that this is not their natural state. Prakriti is one of the important concept in Ayurveda.

Further information: Dosha

In Ayurvedic theory, 20 qualities / characteristics guṇa, which are inherent in all substances are more accepted. They can be arranged in ten pairs of antonyms: heavy/light, cold/hot, unctuous/dry, dull/sharp, stable/mobile, soft/hard, non-slimy/slimy, smooth/coarse, minute/gross, viscous/liquid.[13]

Further information: Guna

Ensuring the proper functions of channels (srotas) that transport fluids is a part of Ayurvedic treatment, because the lack of healthy channels is thought to cause diseases. Practitioners treat by massage with oils and Swedana (fomentation) to open up these channels.[14]

Hinduism and Buddhism have been an influence on the development of many of ayurveda's central ideas – particularly its fascination with balance, known in Buddhism as Madhyathmaka.[dubious ].[15] Balance is emphasised; suppressing natural urges is seen to be unhealthy, and doing so claimed to lead to illness.[15] For example, suppressing sneezing may give rise to shoulder pain.[16] However, people are cautioned to stay within the limits of reasonable balance and measure.[15] For example, emphasis is placed on moderation of food intake,[17] sleep, sexual intercourse.[15]

Practice

Ayurvedic practitioners approach diagnosis by using five senses.[18] Hearing is used to observe the condition of breathing and speech.[12] The study of the lethal points or marman marma is of special importance.[13] Ayurvedic doctors regard physical and mental existence together with personality as a unit, each element having the capacity to influence the others. One of the fundamental aspects of ayurvedic medicine is to take this into account during diagnosis and therapy. Concepts of Dinacharya are followed in Ayurveda. Practices like Oil pulling are practised.

Hygiene is a central practice of ayurvedic medicine. Hygienic living involves regular bathing, cleansing of teeth, skin care, and eye washing.[12]


Ayurveda stresses the use of plant-based medicines and treatments. Hundreds of plant-based medicines are employed, including cardamom and cinnamon. Some animal products may also be used, for example milk, bones, and gallstones. In addition, fats are used both for consumption and for external use. Minerals, including sulphur, arsenic, lead, copper sulfate and gold are also consumed as prescribed.[12] This practice of adding minerals to herbal medicine is known as rasa shastra.

In some cases, alcohol was used as a narcotic for the patient undergoing an operation. The advent of Islam introduced opium as a narcotic.[9] Both oil and tar were used to stop bleeding.[12] Traumatic bleeding was said to be stopped by four different methods: ligation of the blood vessel; cauterisation by heat; using different herbal or animal preparations locally which could facilitate clotting; and different medical preparations which could constrict the bleeding or oozing vessels. Various oils could be used in a number of ways, including regular consumption as a part of food, anointing, smearing, head massage, and prescribed application to affected areas.[19][page needed]

While two of the eight branches of classical Ayurveda deal with surgery ( Śalya-cikitsā, Śālākya-tantra), contemporary Ayurvedic theory tends to emphasise that building a healthy metabolic system, attaining good digestion, and proper excretion lead to vitality.[13] Ayurveda also focuses on exercise, yoga, and meditation.[20] In ayurveda, liquids may be poured on the patient's forehead, a technique which is called Shirodhara. To maintain health, a Sattvic diet is prescribed to the patient.

.

Panchakarma

Further information: Panchakarma

According to some experts, the practice of panchakarma (Devanāgarī: पंचकर्म‌)) is a therapeutic way of eliminating toxic elements from the body.[22] Panchakarma includes Vamana, Virechana, Basti, Nasya and Raktamokshana.

Diagnosis

Ayurveda has 8 ways of diagnosis. They are Nadi (Pulse), Mootra (Urine), Mala (Stool), Jinvha (Tongue), Shabda (Speech), Sparsha (Touch), Druk (Vision), Aakruti (Appearance).[23]


History

Ayurveda is a discipline of the upaveda or "auxiliary knowledge". It is treated as a supplement or appendix of the Vedas themselves, usually either the Rigveda or the Atharvaveda. The samhita of the Atharvaveda itself contains 114 hymns or incantations for the magical cure of diseases. There are various legendary accounts of the "origin of ayurveda", e.g. that the science was received by Dhanvantari (or Divodasa) from Brahma[12][24][25] Tradition also holds that a lost text written by the sage Agnivesh, a student of the sage Bharadwaja, influenced the writings of ayurveda.[26]

There are three principal early texts on Ayurveda, all dating to the early centuries of the Common Era. These are the Charaka Samhita, the Sushruta Samhita and the medical portions of the Bower Manuscript (a.k.a.. the Bheda Samhita). The relative chronology of these texts is not entirely clear. The Charaka Samhita is often cited as primary; although it survives in a recension of about the 4th or 5th century, it may be based on an original written between 100 BCE and 100 CE, which would have predated the other two texts. The Sushruta Samhita was written in the 3rd or 4th century. The Bower Manuscript is of particular interest because in this case the manuscript itself is ancient, dated to the early 6th century.[27] The earliest surviving mention of the name Sushruta is from the Bower Manuscript.[28] The medical portions of the Bower Manuscript constitutes a collection of recipes which are connected to numerous ancient authorities, and may be based on an older medical tradition practised during the Maurya period, antedating both the Charaka and the Sushruta Samhitas.

The Bower Manuscript is also of special interest to historians due to the presence of Indian medicine and its concepts in Central Asian Buddhism. A. F. R. Hoernle in his 1897 edition identified the scribe of the medical portions of the manuscript as a native of India, using a northern variant of the Gupta script, who had migrated and become a Buddhist monk in a monastery in Kucha. The Chinese pilgrim Fa Hsien (ca. 337–422 AD) wrote about the health care system of the Gupta empire (320–550) and described the institutional approach of Indian medicine, also visible in the works of Charaka, who mentions a clinic and how it should be equipped.[29]

Other early texts, sometimes mentioned alongside the Sushruta, Chakaka and Bheda texts, are the Kasyapa and the Harita samhitas, presumably dating to the later Gupta period (ca. 6th century). Ayurvedic authors of the 7th or 8th century include Vagbhata[30] and Madhava.

Underwood & Rhodes (2008) hold that this early phase of traditional Indian medicine identified "fever (takman), cough, consumption, diarrhea, dropsy, abscesses, seizures, tumours, and skin diseases (including leprosy)".[12] Treatment of complex ailments, including angina pectoris, diabetes, hypertension, and stones, also ensued during this period.[3][31] Plastic surgery, couching (a form of cataract surgery), puncturing to release fluids in the abdomen, extraction of foreign elements, treatment of anal fistulas, treating fractures, amputations, cesarean sections, and stitching of wounds were known.[12] The use of herbs and surgical instruments became widespread.[12]

The field of Ayurveda flourished throughout the Indian Middle Ages; Dalhana (fl. 1200), Sarngadhara (fl. 1300) and Bhavamisra (fl. 1500) compiled works on Indian medicine.[28]

The medical works of both Sushruta and Charaka were also translated into the Arabic language during the 8th century.[32] The 9th-century Persian physician Rhazes was familiar with the text.[33] The Arabic works derived from the Gupta era Indian texts eventually also reached a European audience by the end of the medieval period.[32] In Renaissance Italy, the Branca family of Sicily and Gaspare Tagliacozzi (Bologna) are known to have been influenced by the Arabic reception of the surgical techniques of Sushruta.[32]

British physicians travelled to India to see rhinoplasty being performed by native methods.[34] Reports on Indian rhinoplasty were published in the Gentleman's Magazine in 1794.[34] Joseph Constantine Carpue spent 20 years in India studying local plastic surgery methods.[34] Carpue was able to perform the first major surgery in the western world in 1815.[35] Instruments described in the Sushruta Samhita were further modified in the Western World.[35] Joseph Constantine Carpue based on this article was able to perform the "Indian" method of nose reconstruction and publish it in 1815.;[36][37]

Current status


India

According to some sources up to 80 percent of people in India use some form of traditional medicines, a category which includes Ayurveda.[38][39]

In 1970, the Indian Medical Central Council Act which aims to standardise qualifications for ayurveda and provide accredited institutions for its study and research was passed by the Parliament of India.[40] In India, over 100 colleges offer degrees in traditional ayurvedic medicine.[20] The Indian government supports research and teaching in ayurveda through many channels at both the national and state levels, and helps institutionalise traditional medicine so that it can be studied in major towns and cities.[41] The state-sponsored Central Council for Research in Ayurvedic Sciences (CCRAS) has been set up to research the subject.[42] To fight biopiracy and unethical patents, the Government of India, in 2001, set up the Traditional Knowledge Digital Library as repository of 1200 formulations of various systems of Indian medicine, such as ayurveda, unani and siddha.[43][44] The library also has 50 traditional ayurveda books digitised and available online.[45]

Central Council of Indian Medicine (CCIM) a statutory body established in 1971, under Department of Ayurveda, Yoga and Naturopathy, Unani, Siddha and Homoeopathy (AYUSH), Ministry of Health and Family Welfare, Government of India, monitors higher education in ayurveda.[46] Many clinics in urban and rural areas are run by professionals who qualify from these institutes.[40]

Sri Lanka

The Sri Lankan tradition of Ayurveda is very similar to the Indian tradition. Practitioners of Ayurveda in Sri Lanka refer to texts on the subject written in Sanskrit, which are common to both countries. However, they do differ in some aspects, particularly in the herbs used.

The Sri Lankan government has established a Ministry of Indigenous Medicine (established in 1980) to revive and regulate the practice within the country[47] The Institute of Indigenous Medicine (affiliated to the University of Colombo) currently offers undergraduate, postgraduate, and MD degrees in the practice of Ayurveda Medicine and Surgery, and similar degrees in unani medicine.[48]

There are currently 62 Ayurvedic Hospitals and 208 central dispensaries in the public system, and they served almost 3 million people (approximately 11 percent of Sri Lanka's total population) in 2010. In total there are currently approximately 20,000 registered practitioners of Ayurveda in the country.[49][50]

According to the Mahavamsa, the ancient chronicle of Sinhalese royalty, written in the sixth century A.D., King Pandukabhaya of Sri Lanka (reigned 437 BC to 367 BC) had lying-in-homes and Ayurvedic hospitals (Sivikasotthi-Sala) built in various parts of the country. This is the earliest documentary evidence we have of institutions specifically dedicated to the care of the sick anywhere in the world.[51][52] Mihintale Hospital is the oldest in the world.[53]

Many Sri Lankan hotels and resorts offer Ayurveda themed packages, where guests are treated to a wide array of Ayurveda treatments during their stay.

Outside South Asia

Ayurveda is a system of traditional medicine developed during antiquity and the medieval period, and as such comparable to pre-modern Chinese and European systems of medicine. However, beginning in the 1960s, Ayurveda has begun to be advertised as "alternative medicine" in the West. Due to different laws and medical regulations in the rest of the world, the unregulated practice and commercialisation of ayurvedic medicine has raised ethical and legal issues. In some instances, ayurvedic practices or terminology have also been adapted specifically for Western consumption, notably in the case of "Maharishi Ayurveda" in the 1980s; in some cases, this has involved active fraud on the part of proponents of Ayurveda in an attempt to falsely represent the system as equal to the standards of modern medical research.[54][55][56]

Scientific appraisal


As a traditional medicine, many ayurveda products have not been tested in rigorous scientific studies and clinical trials. In India, research in ayurveda is undertaken by the statutory body of the Central Government, the Central Council for Research in Ayurveda and Siddha (CCRAS), through a national network of research institutes.[58] A systematic review of ayurveda treatments for rheumatoid arthritis concluded that there was insufficient evidence, as most of the trials were not done properly, and the one high-quality trial showed no benefits.[59] A review of ayurveda and cardiovascular disease concluded that the evidence for ayurveda was not convincing, though some herbs seemed promising.[60]

Two varieties of Salvia have been tested in small trials; one trial provided evidence that Salvia lavandulifolia (Spanish sage) may improve word recall in young adults,[61] and another provided evidence that Salvia officinalis (Common sage) may improve symptoms in Alzheimer's patients.[62] Many plants used as rasayana (rejuvenation) medications are potent antioxidants.[63] Neem appears to have beneficial pharmacological properties.[64][65] Turmeric and curcumin have shown effectiveness in preventing cancer in vitro,[66] however according to Cancer Research UK, "there is no evidence that Ayurvedic herbal medicines can prevent, treat or cure cancer in humans".[67]

Within the last decade, some PubMed indexed journals have been published in the field of Ayurveda.[68][69]

Use of toxic metals in Ayurveda

Rasa shastra, the practice of adding metals, minerals or gems to herbs, may have toxic heavy metals such as lead, mercury and arsenic.[6] Adverse reactions to herbs due to their pharmacology are described in traditional ayurvedic texts, but ayurvedic practitioners are reluctant to admit that herbs could be toxic and that reliable information on herbal toxicity is not readily available; there is communication gap between modern medicine practitioners and Ayurvedic practitioners.[70]

According to a 1990 study on ayurvedic medicines in India, 41 percent of the products tested contained arsenic, and 64 percent contained lead and mercury.[38] A 2004 study found toxic levels of heavy metals in 20 percent of ayurvedic preparations made in South Asia and sold in the Boston area, and concluded that ayurvedic products posed serious health risks and should be tested for heavy-metal contamination.[71] A 2008 study of more than 230 products found that approximately 20 percent of remedies (and 40 percent of rasa shastra medicines) purchased over the Internet from both US and Indian suppliers contained lead, mercury or arsenic.[6][72][73] In 2012 the US Centers for Disease Control and Prevention (CDC) stated that Ayurvedic drugs have been linked to lead poisoning on the basis of some cases where pregnant women had taken Ayurvedic drugs and toxic materials were found in their blood.[74]

Ayurvedic proponents believe that the toxicity of these materials is reduced through purification processes such as samskaras or shodhanas (for metals), similar to the Chinese pao zhi, although the ayurvedic technique is more complex and may involve prayers as well as physical pharmacy techniques. However, these products have nonetheless caused severe lead poisoning and other toxic effects.[72][75]

Due to these concerns, the Government of India ruled that ayurvedic products must specify their metallic content directly on the labels of the product,[7] but, writing on the subject for Current Science, a publication of the Indian Academy of Sciences, M. S. Valiathan noted that "the absence of post-market surveillance and the paucity of test laboratory facilities [in India] make the quality control of Ayurvedic medicines exceedingly difficult at this time.[7]

See also

References


Further reading

  • Kishor Patwardhan 2008. Concepts of Human Physiology in Ayurveda, in Sowarigpa and Ayurveda, Central Institute of Higher Tibetan Studies, Sarnath, Varanasi. Samyak Vak Series-14, Editor: Pabitra Kumar Roy, pp. 53–73. Concepts of Human Physiology in Ayurveda
  • WHO guidelines on safety onitoring of herbal medicines in pharmacovigilance systems
  • Use Caution With Ayurvedic Products – Guidelines by US FDA.

External links

  • DMOZ
  • www.silambam.asia Ayurveda, Siddha, natural remedies and self-treatment
  • Ayurveda: Benchmarks for trainings in traditional/complementary and alternative medicine – document from the World Health Organization (WHO)
  • National Library of Ayurveda Medicine
  • Department of Ayurveda, Yoga & Naturopathy, Unani, Siddha and Homoeopathy (AYUSH) – National Portal of India

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