Applied psychology involves using psychological principles and research to solve real-world problems in various fields. It focuses on implementing practical solutions rather than abstract theories. Some key areas of applied psychology include clinical, counseling, industrial/organizational, educational, forensic, health, and sports psychology. Applied psychologists work in various settings like healthcare, education, the workplace, and the legal system to address issues using techniques like cognitive behavioral therapy. The goal is to improve mental health, performance, safety, and overall well-being.