Fear Factor is a reality television show that first premiered in 2001. Contestants face a series of extreme challenges designed to test their physical and mental limits. These challenges often involve fears such as heights, darkness, or creepy crawlies, and are meant to push participants out of their comfort zones. The show typically features three rounds, with contestants eliminated after each round. The last remaining contestant has the chance to win a cash prize. Fear Factor has been hosted by various personalities, including Joe Rogan and Ludacris, and has inspired international versions in several countries.