WHAT is neuroscience? Neuroscience is the scientific study of the structure or function of the nervous system and brain. To get a grasp on the vast study of neuroscience, first think of the human body and how complex it is. Think of the skeletal system and the muscular, nervous, digestive and respiratory systems that make up the human body and keep it running in tip top shape. Now think of the brain, a singular organ of soft nervous tissue that one-handedly controls all of those other systems, including both mental and physical actions. Sounds a bit daunting doesn’t it?