We don't think much about most of the things that happen with our body. Breathing, walking, swallowing, blinking just seem to happen naturally. But we carry a spongy, wrinkled organ in our head that controls every little action that your body does. Our brain is in charge of thinking, memorizing, learning, creating, feeling emotions and many, many more actions. The way how it is built once made the Nobel laureate James Watson to say that it is "the most complex thing we have yet discovered in our universe."