Biological Psychology is a branch of psychology that explores the connection between biological processes and behavior. It examines how the brain, nervous system, hormones, and genetics influence thoughts, emotions, and actions. Researchers in this field study various aspects, including how neurotransmitters affect mood and how brain injuries can alter personality. This discipline often overlaps with neuroscience, as both fields investigate the underlying mechanisms of behavior. By understanding the biological basis of psychological phenomena, scientists aim to develop better treatments for mental health disorders and improve overall well-being.