Fads are short-lived trends or behaviors that gain sudden popularity among a large group of people. They can emerge in various areas, including fashion, music, and social media. Fads often spread quickly, fueled by social influence and marketing, but they typically fade away just as fast as they appear. Examples of fads include hula hoops, silly bands, and TikTok challenges. While they can create excitement and a sense of community, fads are usually not sustainable and may be replaced by new trends over time. Understanding fads can help people recognize the difference between lasting trends and temporary crazes.