The study of psychology focuses on the human mind, brain, and behavior. It covers the various underlying conditions behind many mental problems and illnesses, and focuses on societal and emotional diseases and what can be done to help ease them. Neuroscience and how the brain operates is typically covered in more in depth psychology courses, so that students can understand the correlation between the emotional feelings people experience and the chemical, scientific reasons behind them. The history of human behavior and famous psychologists is also discussed. Behavioral issues as well as childhood trauma, various psychological disorders, and symptoms of various diagnoses are also covered. The realm of psychology is so broad and so intense that this subject has many different subcategories. We may never fully understand why people behave the way they do, or what causes every mental problem that certain people experience, but through the study of psychology, we are well on our way to making more sense of everything and getting closer to new solutions.