Instinct
Instinct means something that happens automatically or naturally, eg It was almost instinctive the way that the actress acted out the scene.Instinct is the inherent disposition of a living organism toward a particular behavior. Instincts are generally inherited patterns of responses or reactions to certain kinds of stimuli. In humans they are most easily observed in behaviors such as emotions, sexual drive, and other bodily functions, as these are largely biologically determined[citation needed]. Instinct provides a response to external stimuli, which moves an organism to action, unless overridden by intelligence, which is creative and more versatile. Since instincts take generations to adapt, an intermediate position, or basis for action, is served by memory, which provides individually stored successful reactions built upon experience. The particular actions performed may be influenced by learning, environment and natural principles. Generally, the term instinct is not used to describe an existing condition or established state.