Unani is a medical system of thought based on its philosophy of the unique relationship of one of four "humors" assigned to every patient and the patterns of disorder that cause illness.
Unani has some similarities with Ayurveda. However, Unani's primary influence is Islamic, while Ayurveda's primary influence is in Vedic culture.
Unani began as a Graeco-Arabic medical practice that was popular at the time of Hippocrates. Eventually, this system became popular in the Middle East and some Asian countries around 10 A.D. Scholars in these areas outside of Europe have continued to develop and refine this medical system and its treatments for contemporary times.
Today, Unani is a popular system of medicine, particularly in India, where the practice is regulated by the government.
Treating illness using the Unani system of medicine may be less costly than with Western medicine, due in large part to the absence of expensive diagnostic procedures. The Unani system of healing encompasses everything from hygiene and nutrition to mental health treatment.
Unani disease categories, as well as herbal formulas, are currently under investigation as medical treatments in a number of countries worldwide.