The above models detail the key cognitive determinants of health behavior. To the extent that
these models outline the key social cognitive determinants of health behavior, interventions
which target these variables should lead to associated changes in behavior. For example, the
HBM would suggest that encouraging health behaviors is best achieved by increasing
individuals' perceived susceptibility to negative health outcomes and making individuals
aware of the severity of such outcomes. Such approaches have been commonly employed in
health promotion messages. In addition, the HBM might suggest the need to focus on the
benefits of health behaviors and the fact that barriers to action are easily overcome. However,
there has been little systematic evaluation of their effectiveness, perhaps due to the common
sense appeal of these approaches.