Realizing that happiness can be developed or changed is the first step towards increasing one's level of happiness. Many people believe happiness cannot be altered and devalue it, but in reality, happiness is within our control. While genetics may influence aspects like strength and intelligence, our genetic set point only plays a partial role in happiness. Unlike athletic performance, happiness is more malleable and can be improved through one's mood, temperament, and outlook on life. Therefore, happiness is a skill that can be cultivated, similar to nutrition and fitness.