In this research, we are going to examine the various effects of appearance comparison that occurs in women naturally. We would try to understand the changes in compensatory cognition and behavior in women related to body satisfaction. By the use of ecological momentary assessment, it was found that women who have high body dissatisfaction and eating pathology (EPBH) or high body dissatisfaction (HB), have shown a more enthusiastic appearance as compared to the women having low body dissatisfaction (LB). Excluding this behavior, all women have shown a significant amount of negative emotions and cognitions after upward comparison. They also seemed to be more emphasized on dieting or exercising, and showed an increased amount of eating disordered behavior when they were compared upwardly. It was also found during the research that high body dissatisfaction women showed more negative thoughts of consequences and thoughts of dieting as compared to low body dissatisfaction women. Women seems to be more conscious about their looks and figure, so this research study would help in finding the cognitive and behavioral changes occur during the change in their shape and body size. Women seem to be quite conscious about their looks and figure and body dissatisfaction is defined as displeasure in women that is related to their overall appearance (Cash and Pruzinsky). This kind of dissatisfaction is common in our society. Women who are suffering with body dissatisfaction seem to experience unpredicted cognitive behavior, which is related to weight and shape related stimuli. Due to the effect of these dysfunctional thoughts produced inside the brain of these women, it triggers the occurrence of information processing and reasoning errors. The women suffering from body dissatisfaction seem to develop a dysfunctional belief e.g. selective attention and cognitive rigidity inside their mind, this body dissatisfaction also augments the frequency of dysfunctional beliefs among them. Studies have found that the women having eating pathology posses higher level of body dissatisfaction than the women who don’t have eating pathology. The three primary reasons found in this kind of dissatisfaction are: (a) their self evaluation is based on their weight and figure, (b) they try to replicate their role-models unrealistically, (c) they strive themselves to a great level for getting an unrealistic zero figure (Vitousek and Hollon, 1990). There are two pathways through which body dissatisfaction and cognitive errors occur; the first pathway is a result of attending to a thin role model that thought to motivate women having eating disorders to restrict their food intake. This restriction of food creates a binge eating habits among women, which triggers an unusual behavior among them e.g. vomiting and laxative behavior. In the second pathway women seem to increased body dissatisfaction and negative thoughts with the increased amount of eating disorders. Due to the effect of these negative emotions, women try to cope with the situation by the use of bing