The Human Brain is that which sets us apart from all other biological species on earth (and may be in universe). As far as we know, humans are the only creatures who think, analyze, create music, literature and art, travel in space, and walk on the surface of moon and so on. Brain shapes our action, imagination, hopes and dreams.

 Brain has been compared to a supercomputer, however is much more complicated than any known man-made device.  About 3 pound of fatty tissue of our brain consists of two kinds of cells: neurons and glial cells (supportive tissue). It is estimated that there are about 200 billion neurons in adult human brain. Also, there are about 10000 different types of neurons.

Neuron, the functional unit of the brain,  has a body, axon and dendrites. The axon is like a fiber-optic cable carrying outgoing messages (electrical impulses) to the target cells in different locations of our body. Dendrites are tree-like formations where axons from other neurons form a communication unit- synapse. The function of synapse is basically transferring signal from one neuron to another. Each neuron in the brain is connected to hundreds of thousands other neurons. Can you Imagine how complex this network is ?