in literature, lingua franca and philosophy we find numerous and amazing references to the heart and the head. as per the traditional belief, the heart is associated with emotions and the head with reasoning and logic. till nineties this traditional belief was taken as metaphorically by the science community.abig surprise was sprung in 1991 when an american neurocardiologist ja armour discovered that the heart has its own brain and nervous system. he found that the nervous system of the heart has around for