A temporary behavior or practice that spreads rapidly among individuals or groups and then disappears after a short period of time. The spread of fads is often associated with a desire to experience something new or identify with others and is characterized by a lack of resilience or social/cultural depth. Fads can be associated with fashion, games, hobbies, or entertainment trends, and their emergence reflects social influence and a tendency toward mass imitation, but fads often have no long-term significance or impact on society.