The nervous system is composed of all the nerves in your body. Nerves are cells that transmit messages through the body. The nervous system can be broken down into several parts.
Psychology is the scientific study of human behavior and mental processes. Mental processes includes cognition and emotion. Psychology informs our understanding of the world and effective health interventions.
Psychologists debate the extent to which nature and nurture impact human behavior, thinking, and emotions. Nature refers to our genes and biological systems. Nurture refers to our environment and experiences.