Assessment of mizaj [temperament] in Unani system of medicine and its relevance to modern theory of blood grouping

Mizaj [temperament] forms the bases of diagnosis and treatment in the Unani System of Medicine. Evaluation and classification of various temperaments are based on the intermixture of four akhlat [humours] in the blood in different proportions and this blood plays and important role in the constitution of Mizaj. Domination of humours e.g., blood, phlegm, bile and black bile in the blood categorises persons in sanguine, phlegmatic, choleric and melancholic temperaments respectively. Similarly, on the other hand, presence or absence of A and B antigens in the blood classifies persons into four groups, A, B, AB, and O. The study was undertaken to find out the relationship between temperaments and blood groups of 120 healthy temperaments and blood groups of 120 healthy individuals