Several studies found that, compared to the theory of reasoned action (TRA), TPB better predicts health-related behavioral intention. TPB has improved the predictability of intention with regard to several health-related behaviors, including condom use, choice of leisure activities, exercise, and diet. In these studies, attitudes and intentions to behave in a certain way tend to be mediated by goals and needs. For example, an individual may be guided by the goal of losing 5 kg of weight in 60 days; a positive attitude and intention towards dieting would be important. However, if a need is taken into account, such as a need for a partner in an individual's effort to lose weight and the person is unable to find such a partner, weight loss is not likely to take place.