Which of the following statements about happiness is FALSE? Life circumstances account for the smallest percentage of a person's level of happiness. Half of a person's level of happiness is determined by their genetic set point. The main way to change your level of happiness is to change what you do and how you think (i.e., intentional activities). After changes in life circumstances (e.g., getting married, becoming unemployed, etc.), people eventually return to their baseline levels of happiness for the most part. The only exception to this is if a person becomes disabled. A person's genetic set point of happiness is influenced by the combination of their agreeableness and conscientiousness.