EXTRACTThere are some hypothesis that the children do not feel pain. These assumptions are based on circumstantial and theoretical evidence. This theory believes that children, especially infants are not able to understand the pain because Their nervous system is immature. However, these assumptions are acceptable for all of people except about children. There is evidence that children continuo...

  Evolving evidence shows that health promotion interventions that explicitly use models and theories that are rooted in social and behavioral sciences, are more effective than interventions without a theoretical framework [1]. Testing theories and models is a critical step that should be conducted before utilizing them for intervention development [2].