Introduction A person’s health behavior is closely related to his physical or mental unhealthy days. An unhealthy behavior or lifestyle can highly affect a person’s overall well-being. Unhealthy lifestyle can explain premature mortality and is also associated with chronic diseases. There is a close relationship between risk behavior and mental or physical health. J Am Board Fam Med. 2009 Jul-Aug 22(4):368-74 (Froshauq, Dickinson, Fernald, & Green, 2009). Smoking, diet, exercise etc are some of the lifestyle aspects, while being impulsive, arrogant etc are the behavioral side. A person’s ability to carry out daily activities is related to his health conditions. The different activity a person is involved in is a clear indication of his mental and physical well-being. Reports say that health practices are closely related to the lifespan of a person. Habits like smoking, alcohol usage, stressful lifestyle etc can lead to chronic diseases and conditions like high blood pressure, arthritis, back pain etc. Handbook of health behavior research By David S. Gochman (page 41). Social cognitive models include theory of reasoned action, theory of planned behavior, health belief model and protection motivation theory. – Hand book of health behavior by David S. Gochman (page 42). Social cognitive theory claims that a part of a person’s knowledge acquisition is mainly due to observing his surroundings. This theory is used in psychology, education and communication and is mainly dependent on social interactions, experiences and other sources of information. Aims and Objectives The aim of the research is to explore the relationship between health behavior and social cognitive models. This research also seeks different issues which affect the health behavior of a person. This paper also checks the major components of SCM and how it influences health behavior and major components or factors which affect the health behavior of a person. To understand the health behavior and SCM, this study seeks the relationship between personality and health behavior. This research suggests some methods or important matters for maintaining the health behavior of a person. The researcher analyzes the development, evaluation and implementation of different types of treatments or interpretations in health behavior and their limitations. In order to have a thorough knowledge of the influence or interrelationship of health behavior and social cognitive model in a person, this study aims at addressing the following questions:   * What is health behavior and social cognition models?   * How does personality help to form health behavior?   * What one can see as a risk? How these risks can be assessed?   * What is the other Social Cognitive Models (SCM)? What are the utility of SCM?   * How past behavior and habits affect in future health behavior?   * What are the automatic influences in one’s health behavior?   * How one can maintain health behavior? What are the basic components for maintaining the health behavior?   * How far SCM is able or effective for the assessment of health behavior?   * What are the developments of theory based interventions in health behavior?   * What is the evaluation of theory based intervention o