Psychobiology is the scientific study of the relationship between biological processes and psychological functions. It explores how the brain, nervous system, and hormones influence behavior, emotions, and mental processes. This field combines principles from psychology, biology, and neuroscience to understand how physical factors affect mental health and behavior. Researchers in psychobiology often investigate topics such as neurotransmitters, genetics, and the impact of environment on mental states. By examining these connections, psychobiology aims to provide insights into various psychological disorders and develop effective treatments, bridging the gap between physical health and mental well-being.