A trend gains momentum over time, stabilizing into a habit or lifestyle. It seeks to innovate and solve problems. A fad is short-lived, driven by novelty. Trends have sustained behavior while fads are intense but brief. Trends meet needs while fads rely on coolness. Trends grow steadily while fads appear and disappear suddenly. Trends can cross industries while fads are limited in scope. Factors shaping trends include human needs, history, globalization, and digital connectivity enabling information sharing worldwide.