The paradox of choice is a concept in psychology that suggests that while having some choice is beneficial, too many options can lead to negative effects, such as anxiety, dissatisfaction, and indecision. When people are faced with an overwhelming number of choices, they can feel paralyzed, struggle with making decisions, and ultimately regret their choice, even if it was good. This can lead to a feeling of less happiness, as people may constantly wonder if they could have made a better decision if there had been fewer options.