The term "Fear Factor" refers to a psychological phenomenon where an individual's fear or anxiety about a situation can cause them to act in ways that may seem irrational, illogical or even self-destructive. This is because the amygdala, which is responsible for processing emotions such as fear and anxiety, can override rational thought when it perceives danger. The phrase "Fear Factor" has also come to refer to a popular reality television show where contestants participate in dangerous stunts or challenges in order to win money prizes.