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In Islam, all components of existence are treated with equal importance, from breath and
body to the soul and matter; both spiritual and physical health is essential. As a result, many
Arab and Muslim physicians, such as Rhazes and Avicenna, proposed that the body should
be treated as a whole and not just as a series of parts and organs, and that it was endowed
with an ability of natural healing that depended on rest, a good diet, fresh air, and
cleanliness. Avicenna noted that there were individual differences in the severity of ...