This document defines mental disorder and provides details on what constitutes a normal versus disordered mind. It states that a mental disorder is a disorder of the mind, which is the set of cognitive faculties including consciousness, imagination, perception, thinking, judgement and language. A normal mind is fully aware of its environment and able to accurately perceive, think, feel emotions and behave autonomously while adapting to stress. In contrast, a disordered mind exhibits distorted perceptions, negative thoughts, unstable emotions, unreasonable behavior, confusion and memory problems.