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Abū ʿAlī al-Ḥusayn ibn ʿAbd Allāh ibn Sīnā (c. 980, Afshana near Bukhara Uzbekistan – 1037, Hamadan), commonly known as Ibn Sīnā or by his Latinized name Avicenna, was a Muslim Persian physician and philosopher.
Ibn Sīnā studied medicine under a physician named Koushyar. He wrote almost 450 treatises on a wide range of subjects, of which around 240 have survived. In particular, 150 of his surviving treatises concentrate on philosophy and 40 of them concentrate on medicine. His most famous works are The Book of Healing, a vast philosophical and scientific encyclopaedia, and The Canon of Medicine, which was a standard medical text at many medieval universities. The Canon of Medicine was used as a text-book in the universities of Montpellier and Louvain as late as 1650. Ibn Sīnā's Canon of Medicine provides a complete system of medicine according to the principles of Galen (and Hippocrates).
He was also an astronomer, chemist, geologist, Hafiz, Islamic psychologist, Islamic scholar, Islamic theologian, logician, paleontologist, mathematician, Maktab teacher, physicist, poet, and scientist.
The study of Quran and Hadith thrived in such a scholarly atmosphere. Philosophy, Fiqh and theology (kalam) were further developed, most noticeably by Avicenna and his opponents. Al-Razi and Al-Farabi had provided methodology and knowledge in medicine and philosophy. Avicenna had access to the great libraries of Balkh, Khwarezm, Gorgan, Rey, Isfahan and Hamedan. As various texts, such as the 'Ahd with Bahmanyar show, he debated philosophical points with the greatest scholars of the time. As Aruzi Samarqandi describes in his four articles before Avicenna left Khwarezm he had met Abu Rayhan Biruni (a famous scientist and astronomer), Abu Nasr Iraqi (a renowned mathematician), Abu Sahl Masihi (a respected philosopher) and Abu al-Khayr Khammar (a great physician).
A number of different theories have been proposed regarding Avicenna's madhab. Medieval historian Ẓahīr al-dīn al-Baīhaqī considered Avicenna to be a follower of the Brethren of Purity. On the other hands, Shia faqih Nurullah Shushtari and historian Sayyed Hussein Nasr have both maintained that he was most likely a Twelver Shia. More recently, Dimitri Gutas refuted both these claims and demonstrated that Avicenna was a Sunni Hanafi.
Ibn Sīnā was put under the charge of a tutor, and his precocity soon made him the marvel of his neighbors; he displayed exceptional intellectual behaviour and was a child prodigy who had memorized the Qur'an by the age of 10 and a great deal of Persian poetry as well. He learned Indian arithmetic from an Indian greengrocer, and he began to learn more from a wandering scholar who gained a livelihood by curing the sick and teaching the young. He also studied Fiqh (Islamic jurisprudence) under the Hanafi scholar Ismail al-Zahid.
As a teenager, he was greatly troubled by the Metaphysics of Aristotle, which he could not understand until he read al-Farabi's commentary on the work.
About 100 treatises were ascribed to Ibn Sina. Some of them are tracts of a few pages, others are works extending through several volumes. The best-known amongst them, and that to which Ibn Sina owed his European reputation, is his 14-volume The Canon of Medicine, which was a standard medical text in Europe and the Islamic world up until the 18th century.
The Canon of Medicine was the first book dealing with experimental medicine, evidence-based medicine, randomized controlled trials, and efficacy tests, and it laid out the following rules and principles for testing the effectiveness of new drugs and medications, which still form the basis of clinical pharmacology
{| class="wikitable" |+Avicenna's four humours and temperaments |- !Evidence !Hot !Cold !Moist !Dry |- | Morbid states | inflammations become febrile | fevers related to serious humour, rheumatism | lassitude | loss of |- | Functional power | deficient energy | deficient digestive power | difficult digestion | |- | Subjective sensations | bitter taste, excessive thirst, burning at cardia | Lack of desire for fluids | mucoid salivation, sleepiness | insomnia, wakefulness |- | Physical signs | high pulse rate, lassitude | flaccid joints | diarrhea, swollen eyelids, rough skin, acquired habit | rough skin, acquired habit |- | Foods & medicines | calefacients harmful, infrigidants beneficial | infrigidants harmful, calefacients beneficial | moist articles harmful | regimen harmful, humectants beneficial |- | Relation to weather | worse in summer | worse in winter | | bad in autumn |}
Ibn Sina's Canon of Medicine which is written in 5 volumes, only the first volume has appeared in the English Language. In the first volume, Ibn Sina divides medicine into two parts as he explains it throughout the first book: the theoretical and the practical. The theoretical part consists of, but is not excluded to, such things as: the causes of health and disease, the temperaments, the humours, the anatomy, general physiology, the breath, psychology, discussion of causes diseases and symptoms, the causes of illness, the classification of diseases, the pulse, the urine etc.
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Theoretical and Practical Medicine
Ibn Sina goes on to say that you do not get any benefit from just knowing how your body works, but rather the true benefit of medicine itself is in its practical aspect, since medicine is for the preservation of health.
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The Benefits of Exercise
Once the purpose of medicine has been set forth, then from pages 377-455, Ibn Sina divides the way of achieving health as:
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Exercise itself is divided into three main parts: The Massage (which is equivalent to massaging your muscles before you start to exercise); The Exercise itself; and lastly the Cold Bath.
Giving one of the greatest benefits of the regimen of exercise, and then explaining the extremely important and necessary need for physical exercise; Ibn Sina states:
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In what manner does Ibn Sina uses the word temperament? In saying that exercise cures diseases of temperamant
Ibn Sina divides temperament into that which is harmonious and that which is non-uniform. Ibn Sina says on pg 276-277
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The Purpose of Exercise and the Dangers of its negligence
Just before this Ibn Sina explained how accumulation of food in our body, can cause diseases, and one way to rid us of this is strong medicines. However, as he explains; this is not the ideal way, and certainly not the long-term. Thus, to make his point very clear, and show the extreme necessity of daily exercise for health, Ibn Sina states:
Massage
Before you begin to exercise it is important that you massage your muscles; as Ibn Sina says on page 385:
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Exercises
The exercises themselves are divided into 'strenuous, mild, vigorous and brisk'. On pages 379-381; Ibn Sina states the types of exercises under each type:
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There are certain important things to note once you start exercising, one is the amount, the other consistency; Ibn Sina states about the amount:
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On being consistent with exercise Ibn Sina states (on the importance of having a regimen):
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On the side note those who think themselves to be elderly, and thus think of shunning exercise, Ibn Sina write a complete chapter titled "Concerning the Elderly" in the Qanun, and states the same regimen for them, as he does for others. He states on page 433
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Bathing in Cold Water
Once you have finished exercising; it is often that the person will feel tired and fatigued; to combat this problem Ibn Sina says on page 388:
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Most importantly you should remember:
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There are two more things that are important to mention on this subject:
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Diet
Once Ibn Sina has laid the foundation of exercise being central to health, he names many exercises as running, swimming, weight lifting, polo, fencing, boxing, wrestling, long jumping, high jumping, etc. He also gives a diet to go along with the exercise:
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After setting out the meal plan for health, Ibn Sina talks about how many times we should be eating a day by stating on page 396:
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Lastly, the third thing mentioned is sleep; to make sure that you do not sleep during the days, and do not stay awake during the nights. From the above reading, it is clear that Ibn Sina gave advice in his book which is still the same advice medical doctors give to their patients.Daily Physical Exercise; and to defeat diseases such as type 2 diabetes, high blood pressure, the prescription of a diet which contains high amounts of Whole Grains and little to no amounts of Refined Carbohydrates.
Avicenna was a pioneer of neuropsychiatry. He first described numerous neuropsychiatric conditions, including hallucination, insomnia, mania, nightmare, melancholia, dementia, epilepsy, paralysis, stroke, vertigo and tremor.
In The Canon of Medicine, Avicenna dealt with neuropsychiatry and described a number of neuropsychiatric conditions, including melancholia. He described melancholia as a depressive type of mood disorder in which the person may become suspicious and develop certain types of phobias.
Books
Encyclopedia
Special Number
Due to his fundamental contributions to the development of geology, particularly regarding the origins of mountains, Avicenna has been called the 'Father of Geology'.
In the Al-Burhan (On Demonstration) section of The Book of Healing, Avicenna discussed the philosophy of science and described an early scientific method of inquiry. He discusses Aristotle's Posterior Analytics and significantly diverged from it on several points. Avicenna discussed the issue of a proper methodology for scientific inquiry and the question of "How does one acquire the first principles of a science?" He asked how a scientist would arrive at "the initial axioms or hypotheses of a deductive science without inferring them from some more basic premises?" He explains that the ideal situation is when one grasps that a "relation holds between the terms, which would allow for absolute, universal certainty." Avicenna then adds two further methods for arriving at the first principles: the ancient Aristotelian method of induction (istiqra), and the method of examination and experimentation (tajriba). Avicenna criticized Aristotelian induction, arguing that "it does not lead to the absolute, universal, and certain premises that it purports to provide." In its place, he develops a "method of experimentation as a means for scientific inquiry."
In mechanics, Ibn Sīnā, in The Book of Healing, developed an elaborate theory of motion, in which he made a distinction between the inclination (tendency to motion) and force of a projectile, and concluded that motion was a result of an inclination (mayl) transferred to the projectile by the thrower, and that projectile motion in a vacuum would not cease. He viewed inclination as a permanent force whose effect is dissipated by external forces such as air resistance.
His theory of motion is thus reminiscent of the theory of inertia, now known as Newton's first law of motion. His theory of mayl also attempted to provide a quantitive relation between the weight and velocity of a moving body, resembling the concept of momentum, a precursor to the concept of momentum in Newton's second law of motion. Ibn Sīnā's theory of mayl was further developed by Jean Buridan in his theory of impetus.
In optics, Ibn Sina "observed that if the perception of light is due to the emission of some sort of particles by a luminous source, the speed of light must be finite." He also provided a wrong explanation of the rainbow phenomenon. Carl Benjamin Boyer described Avicenna's ("Ibn Sīnā") theory on the rainbow as follows:
In 1253, a Latin text entitled Speculum Tripartitum stated the following regarding Avicenna's theory on heat:
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Avicenna's legacy in classical psychology is primarily embodied in the Kitab al-nafs parts of his Kitab al-shifa' (The Book of Healing) and Kitab al-najat (The Book of Deliverance). These were known in Latin under the title De Anima (treatises "on the soul"). The main thesis of these tracts is represented in his so-called "flying man" argument, which resonates with what was centuries later entailed by Descartes's cogito argument (or what phenomenology designates as a form of an "epoche").
Ibn Sīnā wrote extensively on early Islamic philosophy, especially the subjects logic, ethics, and metaphysics, including treatises named Logic and Metaphysics. Most of his works were written in Arabic - which was the de facto scientific language of that time, and some were written in the Persian language. Of linguistic significance even to this day are a few books that he wrote in nearly pure Persian language (particularly the Danishnamah-yi 'Ala', Philosophy for Ala' ad-Dawla'). Ibn Sīnā's commentaries on Aristotle often corrected the philosopher, encouraging a lively debate in the spirit of ijtihad.
In the medieval Islamic world, due to Avicenna's successful reconciliation between Aristotelianism and Neoplatonism along with Kalam, Avicennism eventually became the leading school of Islamic philosophy by the 12th century, with Avicenna becoming a central authority on philosophy.
Avicennism was also influential in medieval Europe, particular his doctrines on the nature of the soul and his existence-essence distinction, along with the debates and censure that they raised in scholastic Europe. This was particularly the case in Paris, where Avicennism was later proscribed in 1210. Nevertheless, his psychology and theory of knowledge influenced William of Auvergne and Albertus Magnus, while his metaphysics had an impact on the thought of Thomas Aquinas.
Following al-Farabi's lead, Avicenna initiated a full-fledged inquiry into the question of being, in which he distinguished between essence (Mahiat) and existence (Wujud). He argued that the fact of existence can not be inferred from or accounted for by the essence of existing things and that form and matter by themselves cannot interact and originate the movement of the universe or the progressive actualization of existing things. Existence must, therefore, be due to an agent-cause that necessitates, imparts, gives, or adds existence to an essence. To do so, the cause must be an existing thing and coexist with its effect.
Avicenna’s consideration of the essence-attributes question may be elucidated in terms of his ontological analysis of the modalities of being; namely impossibility, contingency, and necessity. Avicenna argued that the impossible being is that which cannot exist, while the contingent in itself (mumkin bi-dhatihi) has the potentiality to be or not to be without entailing a contradiction. When actualized, the contingent becomes a ‘necessary existent due to what is other than itself’ (wajib al-wujud bi-ghayrihi). Thus, contingency-in-itself is potential beingness that could eventually be actualized by an external cause other than itself. The metaphysical structures of necessity and contingency are different. Necessary being due to itself (wajib al-wujud bi-dhatihi) is true in itself, while the contingent being is ‘false in itself’ and ‘true due to something else other than itself’. The necessary is the source of its own being without borrowed existence. It is what always exists. The Necessary exists ‘due-to-Its-Self’, and has no quiddity/essence (mahiyya) other than existence (wujud). Furthermore, It is ‘One’ (wahid ahad) since there cannot be more than one ‘Necessary-Existent-due-to-Itself’ without differentia (fasl) to distinguish them from each other. Yet, to require differentia entails that they exist ‘due-to-themselves’ as well as ‘due to what is other than themselves’; and this is contradictory. However, if no differentia distinguishes them from each other, then there is no sense in which these ‘Existents’ are not one and the same. Avicenna adds that the ‘Necessary-Existent-due-to-Itself’ has no genus (jins), nor a definition (hadd), nor a counterpart (nadd), nor an opposite (did), and is detached (bari’) from matter (madda), quality (kayf), quantity (kam), place (ayn), situation (wad’), and time (waqt).
Ibn Sīnā memorized the Qur'an by the age of seven, and as an adult, he wrote five treatises commenting on suras from the Qur'an. One of these texts included the Proof of Prophecies, in which he comments on several Quranic verses and holds the Qur'an in high esteem. Avicenna argued that the Islamic prophets should be considered higher than philosophers.
In astronomy, he criticized Aristotle's view of the stars receiving their light from the Sun. Ibn Sīnā stated that the stars are self-luminous, and believed that the planets are also self-luminous. He claimed to have observed the transit of Venus across the Sun on May 24, 1032. He used his transit observation to demonstrate that Venus was, at least sometimes, below the Sun in the Ptolemaic cosmology.
Soon after, he wrote the Compendium of the Almagest, a commentary on Ptolemy's Almagest. Avicenna concluded that Venus is closer to the Earth than the Sun. In 1070, Abu Ubayd al-Juzjani, a pupil of Ibn Sīnā, claimed that his teacher Ibn Sīnā had solved the equant problem in the Ptolemaic model.
*Liber Aboali Abincine de Anima in arte Alchemiae
In one of these works, Ibn Sīnā discredited the theory of the transmutation of substances commonly believed by alchemists:
Among his works refuting alchemy, Liber Aboali Abincine de Anima in arte Alchemiae was the most influential, having influenced later medieval chemists and alchemists such as Vincent of Beauvais.
When some of his opponents blame him for blasphemy, he says
George Sarton, the author of The History of Science, described Ibn Sīnā as "one of the greatest thinkers and medical scholars in history"
In Iran, he is considered a national icon, and is often regarded as one of the greatest Persians to have ever lived. Many portraits and statues remain in Iran today. An impressive monument to the life and works of the man who is known as the 'doctor of doctors' still stands outside the Bukhara museum and his portrait hangs in the Hall of the Avicenna Faculty of Medicine in the University of Paris. There is also a crater on the Moon named Avicenna. Bu-Ali Sina University in Hamedan (Iran), the ibn Sīnā Tajik State Medical University in Dushanbe (The capital of the Republic of Tajikistan), Ibn Sina Academy of Medieval Medicine and Sciences at Aligarh, India, Avicenna School in Karachi and Avicenna Medical College in Lahore Pakistan, Ibne Sina Balkh Medical School in his native province of Balkh in Afghanistan, Ibni Sina Faculty Of Medicine of Ankara University Ankara, Turkey and Ibn Sina Integrated School in Marawi City (Philippines) are all named in his honour. In 1980, the former Soviet Union, which then ruled his birthplace Bukhara, celebrated the thousandth anniversary of Avicenna's birth by circulating various commemorative stamps with artistic illustrations, and by erecting a bust of Avicenna based on anthropological research by Soviet scholars. Near his birthplace in Qishlak Afshona, some . north of Bukhara, a training college for medical staff has been named for him. On the grounds is a museum dedicated to his life, times and work.
In March 2008, it was announced that Avicenna’s name would be used for new Directories of education institutions for health care professionals, worldwide. The Avicenna Directories will list universities and schools where doctors, public health practitioners, pharmacists and others, are educated. The project team stated “Why Avicenna? Avicenna ... was ... noted for his synthesis of knowledge from both east and west. He has had a lasting influence on the development of medicine and health sciences. The use of Avicenna’s name symbolises the worldwide partnership that is needed for the promotion of health services of high quality.”
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Category:980 births Category:1037 deaths Category:11th-century philosophers Category:Alchemists Category:Aristotelian philosophers Category:Classical humanists Category:Commentators on Aristotle Category:Iranian scientists Category:Medieval Persian physicians Category:People in the history of medicine Category:Persian philosophers Category:Medieval Persian people Category:Unani medicine Category:Ethicists Category:Muslim philosophers
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