The neurological system, comprising the central nervous system (CNS) and peripheral nervous system (PNS), regulates bodily functions. The CNS, encompassing the brain and spinal cord, controls cognitive processes and motor functions. The PNS connects the CNS to the body, managing voluntary (somatic) and involuntary (autonomic) actions. Neurons facilitate communication through electrical signals and chemical messages. Neurological disorders like Alzheimer's and multiple sclerosis emerge when communication breaks down. Understanding the neurological system is pivotal for grasping behavior, perception, and movement mechanisms, impacting overall well-being.