High variability behavior and low variability behavior refer to the difficulty of changing a behavior through health education intervention. High-variability behaviors include: ① behaviors that are in development or just formed; (2) behaviors that have little to do with cultural traditions or traditional lifestyles; (3) The behavior of the instance has been successfully changed in other plans; (4) the behavior that the society does not agree with. Low variability behaviors include: ① long-term behaviors; (2) behaviors deeply rooted in cultural traditions or traditional lifestyles; (3) The behavior of the instance has not been successfully changed in the past.