Human heart has its own nervous system that is composed of approximately 40,000 neurons. These neurons are connected differently and more elaborately than elsewhere in the body and while they’re capable of detecting circulating chemicals sent from the brain and other organs, they operate independently in their own right. Having it’s own “mini-brain” is the reason why heart transplants work, given the fact that severed nerve connections do not reconnect in a different body. Furthermore, this elaborate nervous centre in the heart has more functions than simply regulating the electrical activities of the heart to keep it pumping. Continue reading >>>>