Psychologist: A psychologist is a trained professional who studies human behavior and mental processes. They use their expertise to help individuals understand and manage their thoughts, emotions, and behaviors. Psychologists employ various techniques and therapies to assess, diagnose, and treat mental health issues. Their role involves conducting research, providing counseling and therapy, administering psychological assessments, and offering guidance and support to individuals, couples, families, and groups. Psychologists may specialize in different areas such as clinical psychology, counseling psychology, educational psychology, or industrial-organizational psychology, among others. They work in various settings, including private practices, hospitals, schools, research institutions, and corporations.